Sl. No.

Name of the Work & Location

Client’s Name and Address

1

SUPPLY, INSTALLATION, TESTING & COMMISSIONING OF SIGNALLING SYSTEM WITH ELECTRONIC INTERLOCKING IN CONNECTION WITH THIRD LINE WORKS BETWEEN ANUPPUR-PENDRA ROAD SECTION OF SOUTH EAST CENTRAL RAILWAY OF BILASPUR DIVISION.

RITES, GURGAON

2

I) ALTERATION IN EXISTING SIEMENS MAKE ELECTRONIC INTERLOCKING AT PIRPAINTI ; II) SIGNALLING (ELECTRONIC INTERLOCKING) WORK AT KAHALGAON, EKCHARI, LILAKH MAMALKHA, GHOGA, SABOUR ; III) PI ALTERATION AT BHAGALPUR IN CONNECTION WITH DOUBLE LINE BETWEEN PIRPAINTI TO BHAGALPUR SECTION AND (IV) SIGNALLING (ELECTRONIC INTERLOCKING) WORK AT RATANPUR STATION IN MALDA DIVISION OF EASTERN RAILWAY.

THE CHIEF SIGNAL & TELECOM. ENGINEER/CON
NKG BUILDING, 13TH FLOOR,14 STRAND ROAD,EASTERN RAILWAY,
KOLKATA- 700 001.

3

DESIGN, MANUFACTURE, SUPPLY, INSTALLATION, TESTING & COMMISSIONING OF SOLID STATE INTERLOCKING (ELECTRONIC INTERLOCKING) SYSTEM CONFIRMING TO RDSO SEPC. NO. RDSO/ SPN/ 192/ 2005 WITH LATEST AMENDMENTS AT 10 STATIONS VIZ. OBRA, KARAILA ROAD, MAGARDAH, MAHADEIYA, MIRCHADHORI, SHAKTINAGAR, SINGRAULI & PAPRAKUND STATIONS IN DHANBAD DIVISION, JAMUI STATION IN DANAPUR DIVISION AND GARHARA STATION IN SONEPUR DIVISION OF EAST CENTRAL RAILWAY, INCLUDING ALL INDOOR & OUTDOOR SIGNALING WORKS.

EAST CENTRAL RAILWAY, OFFICE OF THE DY. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD – 826001

4

DESIGN, SUPPLY, INSTALLATION & COMMISSIONING OF AUTOMATIC SIGNALING BETWEEN HOWRAH-KHANA SECTION IN HOWRAH DIVISION AND DUM DUM JUNCTION-DANKUNI SECTION IN SEALDAH DIVISION OF EASTERN RAILWAY USING AUDIO FREQUENCY TRACK CIRCUIT INCLUDING POWER SUPPLY ARRANGEMENT AND NETWORKING WITH DATA LOGGERS ALONGWITH CONSTRUCTION OF MASONRY BUILDING DULY ELECTRIFIED FOR HOUSING OF AFTC EQUIPMENT & MODIFICATION OF EXISTING INDOOR & OUTDOOR SIGNALING EQUIPMENT AT STATION AND LC GATES.

EASTERN RAILWAY, DY, CHIEF SIGNAL& TELECOMMUNICATION ENGINEER/WORKS, HOWRAH.

5

PANEL INTERLOCKING WITH ELECTRONIC INTERLOCKING AT RAMDAYAL, TURKI, GORAUL, KURHANI, BHAGWANPUR, SARAI (06 STATION) WITH ASSOCIATED WORKS IN CONNECTION WITH HAJIPUR – RAMDAYALU DOUBLING IN SONPUR DIV. OF E. C. RAILWAY.

EAST CENTRAL RAILWAY, (DEPARTMENT OF SIGNAL & TELECOMMUNICATION / CONSTRUCTION), OFFICE OF THE DY CHIEF SIGNAL & TELECOM ENGINEER/CON-1, 2ND FLOOR, DRM OFFICE BUILDING, SAMASTIPUR (BIHAR) – 848101.

6

REPLACEMENT OF LEVER FRAMES BY PANEL INTERLOCKING USING METAL TO METAL RELAYS OF KUSUNDA, BANSJORA, SIJUA, KATRASGARH SONARDIH, PHULWARAITAND, PATHERDIH INCLUDING CONSTRUCTION OF PANEL BUILDING AT THESE 07 STATIONS AND ALTERATION IN EXISTING DHN RRI TO INCLUDE DHANBAD YARD CABIN AND PROVISION OF SSDAC ON BERTHING LINES IN DHANBAD IN DHANBAD DIVISION OF EAST CENTRAL RAILWAY.

EAST CENTRAL RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD-826001

7

SIGNALLING (ELECTRONIC INTERLOCKING) WORK IN CONNECTION WITH DOUBLE LINE BETWEEN PLASSEY TO JIAGANJ SECTION IN SEALDAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, OFFICE OF THE DY. CHIEF SIGNAL & TELECOM ENGINEER, SEALDAH, KOLKATA – 700014

8

DESIGN, SUPPLY OF MATERIALS, INSTALLATION AND COMMISSIONING OF COMPLETE INDOOR & OUTDOOR WORKS OF ROUTE RELAY INTERLOCKING AT HAJIPUR (APPROX 200 ROUTES) AND SONPUR (APPROX 230 ROUTES) IN SONPUR DIVISION OF EAST CENTRAL RAILWAY

CSTE/ CON/ECR, HAJIPUR  – 844101 (BIHAR)

9

RRI (INDOOR & OUTDOOR) WORK AT DEHRI-ON-SON AND SON NAGAR STATION IN MUGHALSARAI DIVISION OF EAST CENTRAL RAILWAY.


THIS WORK HAVE BEEN RECEIVED WITH PARAM @ 60% SHARE & VAISHNAVI @ 40% SHARE.

EAST CENTRAL RAILWAY, OFFICE OF THE CHIEF SIGNAL & TELECOM ENGINEER (CON),5 C-1, KULHARIA COMPLEX, ASHOK RAJPATH,
MAHENDRUGHAT, PATNA – 800 004

10

DESIGN, SUPPLY OF MATERIALS, INSTALLATION & COMMISSIONING OF COMPLETE INDOOR WORK OF ROUTE INTERLOCKING AT DHANBAD (APPROX 250 ROUTES) & GOMOH (APPROX 450 ROUTES) IN DHANBAD DIVISION AND GAYA (APPROX 415 ROUTE) IN MUGHALSARAI DIVISION OF EAST CENTARL RAILWAY (ĔROUTE).

EAST CENTRAL RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD-826001

11

SIGNALLING (RRI) WORK AT JAMALPUR STATION IN MALDA DIVISION OF ESATERN RAILWAY.

EASTERN RAILWAY, MALDA, DY. CHIEF SIG. & TELECOM) ENGR (CON). WEST BENGAL.

12

DESIGN, SUPPLY OF MATERIALS, INSTALLATION AND COMMISSIONING OF COMPLETE INDOOR & OUTDOOR WORKS OF ROUTE RELAY INTERLOCKING AT MUZAFFARPUR (APPROX 300 ROUTES) IN SONPUR DIVISION OF EAST CENTRAL RAILWAY.

EAST CENTRAL RAILWAY, SONPUR DIVISION.

13

PROVISION OF CENTRAL PANEL INTERLOCKING AT GARHDHUBESWAR, CHHATNA, RUKNI, RAMKANALI, MADHUKUNDA, DAMODAR, RADHAGAON, TAMNA, NAMKUM, TATISILWAI, GOUTAMDHARA, KITA & SILLI STATIONS AND CONSTRUCTION OF 26 NOS. END GOOMTY/EVALUTOR ROOM AND PROVISION OF INTERLOCKING OF 14 NOS. L.C. GATES IN ADRA & RANCHI DIVISION OF SOUTH EASTERN RAILWAY.

SOUTH EASTERN RAILWAY, DY. CSTE/CON/ADRA.

14

SUPPLY OF MATERIALS (PARTLY), INSTALLATION, TESTING, INTERLOCKING & COMMISSIONING OF AUTOMATIC SIGNALLING IN BALLYGUNGE JN. – SONARPUR JN. SECTION USING MULTI SECTION DIGITAL AXLE COUNTERS (MSDAC) IN SEALDAH DIVISION OF EASTERN RAILWAY (TWO PACKET SYSTEM TENDER)

THE CHIEF SIGNAL & TELECOM. ENGINEER/PROJECT
FAIRLY,EASTERN RAILWAY,
KOLKATA- 700 001.

15

PANEL INTERLOCKING WORK INCLUDING CONSTRUCTION OF SERVICE BUILDING WITH ELECTRICAL WIRING AT PIRPAINTI, MIRZACHEUKI, KARAMTOLA, SAHIBGANJ, SAKRIGALI, MOHRAJAPUR, KARANPURATO, TALJHARI, KALYANCHAK STATION AND PI WORK AT TINPAHAR, DHAMDHAMIA, BAKUDI, BARHARWA IN MALDA DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, MALDA, DY. CHIEF SIG. & TELECOM) ENGR (CON). WEST BENGAL.

16

SIGNALLING (ELECTRONIC INTERLOCKING) WORK AT KANKINARA AND RRI (EXISTING SIEMENS MAKE-METAL TO METAL RELAY) ALTERATION AT NAIHATI IN CONNECTION WITH 4TH PASSENGER LINE BETWEEN KANKINARA & NAIHATI IN SEALDAH DIVISION OF EASTERN RAILWAY

THE CHIEF SIGNAL & TELECOM. ENGINEER/CON
NKG BUILDING, 13TH FLOOR,14 STRAND ROAD,EASTERN RAILWAY,
KOLKATA- 700 001.

17

SIGNALLING (ELECTRONIC INTERLOCKING) WORK AT BARHARWA AND BONIDANGA AND PI ALTERATION AT BONIDANGA LINK CABIN IN CONNECTION WITH DOUBLE LINE BETWEEN BONIDANGA – BARHARAWA SECTION IN MALDA DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, DY. CSTE (CON), MALDA.

18

SIGNALLING (ELECTRONIC INTERLOCKING) WORK AT KANKINARA AND RRI (EXISTING SIEMENS MAKE-METAL TO METAL RELAY) ALTERATION AT NAIHATI IN CONNECTION WITH 4TH PASSENGER LINE BETWEEN KANKINARA & NAIHATI IN SEALDAH DIVISION OF EASTERN RAILWAY

THE CHIEF SIGNAL & TELECOM. ENGINEER/CON
NKG BUILDING, 13TH FLOOR,14 STRAND ROAD,EASTERN RAILWAY,
KOLKATA- 700 001.

19

REPLACEMENT OF OLD SIGNALING GEARS BY CENTRAL PANEL INTERLOCKING SYSTEM AT RAY, KHALARI, BARKAKANA & END PANEL INTERLOCKING AT BARWADIH (04 STATIONS) OF ‘D SPL’ ROUTE OF DHANBAD DIVISION IN EAST CENTRAL RAILWAY.

EAST CENTRAL RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD-826001

20

MALDA-NEW JALPAIGURI-BLOCK PROVING BY AXLE COUNTERS (31 BLOCK SECTIONS) (B-ROUTE) AND KATIHAR-KUMEDPUR (5 BLOCK SECTIONS) (D-ROUTE)

N F RAILWAY, SR. DSTE/KIR.

21

REMOVAL OF SIGNALLING INFRINGEMENT IN TPH-SBG AND SOLID STATE INTERLOCKING WORK AT KALYANCHAK, TALJHARI, KARANPURATO AND PI MODIFICATION AT TINPAHAR IN CONNECTION WITH “DOUBLING WORK BETWEEN TINPAHAR TO SAHIBGANJ SECTION IN MALDA DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, MALDA, DY. CHIEF SIG. & TELECOM) ENGR (CON). WEST BENGAL.

22

DESIGN, MANUFACTURE, SUPPLY, INSTALLATION, TESTING & COMMISSIONING OF SOLID STATE INTERLOCKING (ELECTRONIC INTERLOCKING) SYSTEM CONFIRMING TO RDSO SEPC. NO. RDSO/ SPN/ 192/ 2005 WITH LATEST AMENDMENTS AT 04 STATIONS VIZ. KRISHNA SHILA, ANNAPARA, KHULDIL ROAD & ADDITIONAL BLOCK STATION BETWEEN SINGRAULI-KARAILA ROAD STATIONS IN DHANBAD DIVISION OF E.C. RAILWAY, INCLUDING ALL INDOOR & OUTDOOR SIGNALING WORKS.

EAST CENTRAL RAILWAY, OFFICE OF THE DIVL. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD – 826001

23

DESIGN, SUPPLY, INSTALLATION & COMMISSIONING OF AUTOMATIC SIGNALING BETWEEN CHANDANPUR – KHANA SECTION IN HOWRAH DIVISION OF EASTERN RAILWAY USING AUDIO FREQUENCY TRACK CIRCUIT INCLUDING POWER SUPPLY ARRANGEMENT & NETWORKING WITH DATA LOGGERS ALONG-WITH CONSTRUCTION OF MASONRY BUILDINGS DULY ELECTRIFIED FOR HOUSING OF AFTC EQUIPMENTS & MODIFICATION OF EXISTING INDOOR & OUTDOOR SIGNALING EQUIPMENTS AT STATIONS & LC GATES

DY. CSTE/CON-II/HQ, FOR CHIEF SIGNAL & TELECOM ENGINEER (CON), EASTERN RAILWAY, KOLKATA

24

SIGNALLING (SOLID STATE INTERLOCKING) WORK AT KARAMTOLA, MIRZACHEUKI & PIRPAINTI AND PI ALTERATION WORK AT SAHIBGANJ SECTION IN CONNECTION WITH DOUBLE LINE BEETWEEN SAHIBGANJ – PIRPAINTI SECTION IN MALDA DIVISION OF ESATERN RAILWAY.

EASTERN RAILWAY, MALDA, DY. CHIEF SIG. & TELECOM) ENGR (CON). WEST BENGAL.

25

DESIGN, SUPPLY OF MATERIALS (PARTLY), INSTALLATION, TESTING & COMMISSIONING OF UP GRADATION OF AUTOMATIC SIGNAL FROM 3 ASPACTS TO 4 ASPACTS IN SEALDAH-DUM DUM JN. SECTION USING MULTI SECTION DEGITAL AXLE COUNTER (MSDAC) WITH DC TRACK CIRCUIT IN SEALDAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, ASTE/WORKS/I/SDAH, SEALDAH

26

REPLACEMENT OF AUTOMATIC SIGNALLING WITH DC TRACK CIRCUITING FOR ENHANCING SAFETY IN TRAIN OPERATION INCLUDING CONSTRUCTION OF END GOOMTIES IN HWH-PKU SECTION OVER KHARAGPUR

CHIEF SIGNAL & TELECOM ENGINEER/CON, S.E. RAILWAY, GARDEN REACH, KOLKATA-43

27

SUPPLY OF MATERIALS (PARTLY), INSTALLATION, TESTING, INTERLOCKING & COMMISSIONING OF INDOOR & OUTDOOR SIGNALING EQUIPMENTS BY ROUTE RELAY INTERLOCKING AT SITARAMPUR STATION ALONG-WITH YARD RE-MODELING AT WEST, EAST & EAST OUTER CABIN IN ASANSOL DIVISION OF EASTERN RAILWAY

THE CHIEF SIGNAL & TELECOM. ENGINEER/PROJECT
FAIRLY,EASTERN RAILWAY,
KOLKATA- 700 001.

28

SIGNALLING (SOLID STATE INTERLOCKING) WORK AT MOHARAJPUR, SAKRIGALI AND EI ALTERATION AT KARANPURATO AND PI ALTERATION WORK SAHIBGANJ IN CONNECTION WITH “DOUBLING WORK BETWEEN TINPAHAR TO SAHIBGANJ SECTION IN MALDA DIVISION OF ESATERN RAILWAY.

EASTERN RAILWAY, MALDA, DY. CHIEF SIG. & TELECOM ENGR (CON). WEST BENGAL.

29

REPLACEMENT OF OLD SIGNALING GEARS BY CENTRAL PANEL INTERLOCKING SYSTEM AT TORI, RICHUGHUTTA, LATEHAR & KUMANDIH (04 STATIONS) AND REPLACEMENT OF CABLE, LOCATION BOXES, WIRING OF CTR AT CHETAR, DEMU & BENDI (03 BLOCK HUT STATIONS) ON D-SPL ROUTE OF DHANBAD DIVISION IN EAST CENTRAL RAILWAY.

EAST CENTRAL RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER (WORKS), DHANBAD-826001

30

SIGNALLING ALTERATION WORK BOTH INDOOR & OUTDOOR AT DANKUNI (RRI – SIEMENS TYPE, WITH METAL TO METAL RELAY) AND C.C. LINK (WEST) (PANEL INTERLOCKING WITH METAL TO CARBON RELAY) IN CONNECTION WITH “3RD LINE WORK BETWEEN BALLY- DANKUNI & DOUBLE LINE WORK BETWEEN DANKUNI- BHATTANAGAR IN HOWRAH DIVISION OF EASTERN RAILWAY.

DY. CHIEF SIGNAL & TELECOM. ENGINEER/CON,
NKG BUILDING, 13TH FLOOR,14 STRAND ROAD,
EASTERN RAILWAY, KOLKATA- 700 001.

31

DESIGN, SUPPLY, INSTALLATION WIRING, TESTING & COMMISSIONING OF INDOOR & OUTDOOR SIGNALLING EQUIPMENTS FOR PANEL INTERLOCKING WORK AT KALUBATHAN, THAPARNAGAR, MUGMA, KUMARDHUBI, MADHUPUR AND DCOP STATIONS IN ASANSOL DIVISION.

EASTERN RAILWAY, DY. CHIEF SIG. & TELECOM ENGR. / W, ASANSOL.

32

DESIGN, SUPPLY OF MATERIALS (PARTLY), INSTALLATION, TESTING & COMMISSIONING OF AUTOMATIC SIGNALS DUM DUM JN-BARASAT SECTION USING MULTI SECTION DEGITAL AXLE COUNTER (MSDAC) WITH DC TRACK CIRCUITS AND PANEL INTERLOCKING AT BIRA STATION IN SEALDAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, ASTE/WORKS/SDAH, SEALDAH

33

SIGNALLING (SOLID STATE INTERLOCKING WORK IN CONNECTION WITH “DOUBLING BETWEEN GHUTIARISARIF TO CANNING”IN SEALDAH DIVISION OF EASTERN RAILWAY

EASTERN RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER/(CON), SEALDAH.

34

SIGNALLING WORK (PROVISION OF IBS) AT LEBUTALA AND AT MALATIPUR AND WITH INTERLOCKING OF LC GATES IN BETWEEN SONDALIA-CHAMPAPUKUR IN CONNECTION WITH DOUBLING WORK BETWEEN SONDALIA – CHAMPAPUKUR SECTION IN SEALDAH DIVISION OF EASTERN RAILWAY

DY. CSTE/CON-II/HQ, FOR CHIEF SIGNAL & TELECOM ENGINEER (CON), EASTERN RAILWAY, KOLKATA

35

P.I. WORK AT SHIVNARAYANPUR, KAHALGAON, GHOGA, SABOUR, BARIARPUR AND MACLS AT BIKRAMSHILA, LAILAKH MAMALKHA & EKCHARI IN MALDA DIVISION OF E. RLY.

EASTERN RAILWAY., CHIEF SIGNAL & TELECOM ENGINEER/CON, KOLKATA

36

DESIGN, SUPPLY, INSTALLATION & COMMISSIONING OF INDOOR AND OUTDOOR SIGNALLING EQUIPMENT AND CONSTRUCTION OF RELAY ROOM / BATTERY ROOM FOR PANEL INTERLOCKING WORK AT AMBIKA KALNA, DHATRIGRAM, SAMUDRAGARH, PURBASTHALI, LAKHIMPUR, PATULI, DAINHAT, SOMARABAZAR AND HARIPAL STATIONS IN HOWRAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, DY CSTE (W)/II/ER/HOWRAH.

37

PANEL INTERLOCKING WORK AT BOLPUR, PRANTIK, KOPAI & AHMEDPUR STATION IN CONNECTION WITH DOUBLING WORK IN BOLPUR – AHMEDPUR SECTION IN HOWRAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, CHIEF SIGNAL & TELECOM ENGR/CON, KOLKATA

38

SIGNALLING (SOLID STATE INTERLOCKING) WORK AT PHULIA & EI ALTERATION AT TWO STATIONS IN CONNECTION WITH DOUBLE LINE BETWEEN KALINARAYANPUR AND SHANTIPUR SECTION IN SEALDAH DIVISION OF EASTERN RAILWAY.

EASTERN RAILWAY, DY. CHIEF SIGNAL & TELECOM ENGINEER/(CON), SEALDAH.

39

INDOOR & OUTDOOR SIGNALING WORK FOR PROVISION OF SECOND DISTANT SIGNAL IN IGATPURI-BHUSAWAL SECTION OF BHUSAWAL DIVISION. (43 STATIONS)

CENTRAL RAILWAY, CHIEF SIGNAL ENGINEER, CSTE OFFICE, CENTRAL RAILWAY, CST MUMBAI.

40

Designing, Trenching, laying of underground signalling cables, casting of foundations erection of apparatus cases and colour light signals supply of certain equipments / materials fixing of equipment, wiring, testing and commissioning of multi aspect colour light signalling to suit 25 KV AC, traction and releasing of singalling gears at traction and releasing of signalling gears at 16 stations on Barwadih (incl) Tokisud (Incl) stations on Sonnagar-Patratu section of Eastern Railway.

C.S.T.E.(CORE)/R.E./Allahabad.

41

MACLS SIGNALLING WORK FOR 16 STATIONS ON BARWADIH -TOKISUD SECTION OF EASTERN RAILWAY.

CENTRAL ORGANISATION RAILWAY ELECTRIFICATION, NAWAD YUSUF ROAD, CIVIL LINES, ALLAHABAD

42

Designing, preparation/alteration of drawing, trenching laying of underground signalling cable, casting of foundation, supply of certain equipments/materials, erection of Apparatus Cases & Colour Light Signals, fixing of equipment, wiring, testing and commissioning of colour light signalling and releasing of existing signalling gears at 9 stations and 1 L. Xing Gate to suit 25 KV AC traction on Patratu (Excl.)-Gumia (Incl.) station on Patratu-Gumia section of Eastern Railway.

C.S.T.E(CORE)/R.E./Allahabad.

43

SIGNALLING WORK ( ALTERATION/MODIFICATION OF EXISTING SIEMENS MAKE WESTRACE VLM6 ELECTRONIC INTERLOCKING SYSTEMS WITH DUAL VDU INPLACE OF EXISTING CCIP) WITH YARD REMODELLING AS PER PHASE WORK AT MURSHIDABAD (MBB) AND BERHAMPUR COURT (BPC),PANEL INTERLOCKING WORK AT TITAGARH (TGH) STATION AND INTERLOCKING OF LEVEL CROSSING GATES IN KRISHNANAGAR – LALGOLA SECTION AND OTHER SECTION ASSOCIATED WITH LEFT OVER ANCILLARY WORKS LIKE LC GATES & OTHERS IN CONNECTION WITH DOUBLING BETWEEN KRISHNANAGAR – LALGOLA AND OTHER SECTION OVER SEALDAH DIVISION OF EASTERN RAILWAY.

THE CHIEF SIGNAL & TELECOM. ENGINEER/CON
NKG BUILDING, 13TH FLOOR,14 STRAND ROAD,EASTERN RAILWAY,
KOLKATA- 700 001.

44

SIGNALING WORK AT GAYA-RRI IN MGS DIVISION OF ECR.

EAST CENTRAL RAILWAY, DIVNL. SIGNAL & TELECOM ENGR. (W), MUGHALSARAI.