As you want to get the details of previous year cut off of M.Tech Rubber Technology in IIT Kharagpur so here it is for you:

IIT Kharagpur MTech.2008 Cut off

S.No GATE paper Cut Off
SC ST OBC Non Creamy Gen
1 AE 373 221 405 470
2 AG 186 211 233 258
3 AR 249 230 323 351
4 CE 362 251 430 480
5 CH 310 207 350 382
6 CS 381 315 451 482
7 CY 231 - 362 417
8 EC 425 334 561 585
9 EE 455 391 550 575
10 GG 214 221 353 308
11 IN 394 362 506 541
12 IT 443 319 505 520
13 MA 315 230 489 510
14 ME 350 283 460 491
15 MN 296 179 284 307
16 MT 173 172 236 260
17 PH 259 216 450 467
18 PI 355 224 345 378
19 PY - - - 641
20 TF 270 - 432 470

Here for your reference I am giving you the details of GATE 2014:

GATE 2014 Exam Pattern:
Candidates will be tested on their comprehension and application skills, recall as well as analytical abilities
Candidates will have to answer Multiple Choice Questions and Numerical Questions.
General Aptitude Questions are compulsory for all GATE 2014 exam papers
GATE 2014 XE Paper will have a compulsory section in Engineering Mathematics and General Aptitude along with any two of XE sections B to G.
GATE 2014 XL Paper Pattern will have a compulsory section inSection H in Chemistry and General Aptitude along with any two of XL sections I to M.

GATE 2014 Application Fee:
General/OBC-NCL Male Candidates: Rs 1500
SC / ST / PD category Candidates: Rs 750
Women Candidates: Rs 750

GATE 2014 Application Fee Payment:
Online through Net Banking OR Through downloaded and printed Challans at any branch of SBI or Syndicate Bank.

GATE 2014 Important Dates:
GATE 2014 Online Enrolment: from September 2 to 1 2013
Last Date for GATE 2014 Online Application Submission: October 3, 2013
Receipt of Printout of GATE 2014 Online Application Form at Zonal Centre: By October 17, 2013 (extended date from October 10, 2013)
Request for Change in the GATE 2014 Exam Centre: From November 15 to 25, 2013
Download of GATE 2014 Admit Card: December 18, 2013
GATE 2014 Examination: On February 2 , 15 & 16 , March 1 & 2, 2014
Timings: Forenoon: 9.00 AM to 12.00 Noon, Afternoon: 2.00 PM to 5.00 PM
GATE 2014 Result Announcement: March 28, 2014 at 10 am

GATE 2014 Organizing Institute and Zonal Centres:
Zone 1: Indian Institute of Science Bangalore
Zone 2: Indian Institute of Technology Bombay
Zone 3: Indian Institute of Technology Delhi
Zone 4: Indian Institute of Technology Guwahati
Zone 5: Indian Institute of Technology Kanpur
Zone 6: Indian Institute of Technology Kharagpur - The Organizing Institute for GATE 2014
Zone 7: Indian Institute of Technology Madras
Zone 8: Indian Institute of Technology Roorkee

GATE 2014: Qualifying marks for each subject:
Aerospace Engineering candidates appeared: 4,559
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 6.67

Agricultural Engineering candidates appeared: 1,168
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 16.67

Architecture and Planning candidates appeared: 3,087
Qualifying marks General: 32.50, Qualifying marks OBC: 29.25, Qualifying marks SC/ST/PWD: 21.67

Biotechnology candidates appeared: 10, 719
Qualifying marks General: 25.84, Qualifying marks OBC: 23.26, Qualifying marks SC/ST/PWD: 17.23

Civil Engineering candidates appeared: 90,872
Qualifying marks General: 26.57, Qualifying marks OBC: 23.91, Qualifying marks SC/ST/PWD: 17.71

Chemical Engineering candidates appeared: 15,844
Qualifying marks General: 35.14, Qualifying marks OBC: 31.62, Qualifying marks SC/ST/PWD: 23.43

Computer Science and Information Technology candidates appeared: 1,55,190
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 16.67

Chemistry candidates appeared: 7,932
Qualifying marks General: 29.87, Qualifying marks OBC: 26.88, Qualifying marks SC/ST/PWD: 19.91

Electronics and Communication Engineering candidates appeared: 2,16,367
Qualifying marks General: 25.56, Qualifying marks OBC: 23.01, Qualifying marks SC/ST/PWD:17.04

Electrical Engineering candidates appeared: 1,41,799
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 16.67

Ecology and Evolution candidates appeared: 652
Qualifying marks General: 42.89, Qualifying marks OBC: 38.60, Qualifying marks SC/ST/PWD: 28.59

Geology and Geophysics candidates appeared: 2,659
Qualifying marks General: 36.33, Qualifying marks OBC: 32.70, Qualifying marks SC/ST/PWD: 24.22

Instrumentation Engineering candidates appeared: 22,367
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 16.67

Mathematics candidates appeared: 3,840
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD: 16.67

Mechanical Engineering candidates appeared: 1,85,578
Qualifying marks General: 28.86, Qualifying marks OBC: 25.97, Qualifying marks SC/ST/PWD:19.24

Mining Engineering candidates appeared: 1,140
Qualifying marks General: 33.67, Qualifying marks OBC: 30.30, Qualifying marks SC/ST/PWD: 22.44

Metallurgical Engineering candidates appeared: 3,586
Qualifying marks General: 49.87, Qualifying marks OBC: 44.88, Qualifying marks SC/ST/PWD: 33.25

Physics candidates appeared: 6,132
Qualifying marks General: 31.72, Qualifying marks OBC: 28.55, Qualifying marks SC/ST/PWD: 21.15

Production and Industrial Engineering candidates appeared: 3,316
Qualifying marks General: 25.00, Qualifying marks OBC: 22.50, Qualifying marks SC/ST/PWD:16.67

Textile Engineering and Fibre Science candidates appeared: 1,290
Qualifying marks General: 25.71, Qualifying marks OBC: 23.14, Qualifying marks SC/ST/PWD: 17.14

Engineering Sciences candidates appeared: 2,532
Qualifying marks General: 29.18, Qualifying marks OBC: 26.26, Qualifying marks SC/ST/PWD: 19.45

Life Sciences candidates appeared: 8,527
Qualifying marks General: 31.04, Qualifying marks OBC: 27.93, Qualifying marks SC/ST/PWD: 20.69