As you want to get the details of last or previous year cut off of IIT JEE Mains and Advanced so here it is for you:

JEE Advanced 2014 Cutoff -

Category Marks Last Rank
CML 152 999
OBC (NCL) 117 5369
SC 74 3045
ST 63 1255
PwD 63 243
Preparatory 53 101

JEE Main 2014 Cutoff:
Category Cut-off Score
Common Merit List (CML) 115
Other Backward Class (OBC - NCL) 74
Scheduled Caste (SC) 53
Scheduled Tribe (ST) 47

IIT JEE Advanced cut off of previous years:

2013
Category MQMR Aggregate cut-off
Chemistry Physics Mathematics
GE 10% 10% 10% 35% (126)
OBC 9% 9% 9% 31.5% (113)
SC 5% 5% 5% 17.5% (63)
ST 5% 5% 5% 17.5% (63)
PD 5% 5% 5% 17.5% (63)

2012
Category MQMR Aggregate cut-off
Chemistry Physics Mathematics
GE 22 20 34 255
OBC 16 15 29 235
SC 10 11 18 125
ST 9 9 17 119
PD 10 11 17 118

2011
Category MQMR Aggregate cut-off
Chemistry Physics Mathematics
GE 20 20 34 229
OBC 18 18 31 207
SC 10 10 17 119
ST 10 10 17 115
PD 10 10 17 115

2010
Category MQMR Aggregate cut-off
Chemistry Physics Mathematics
GE 20 20 34 229
OBC 18 18 31 207
SC 10 10 17 119
ST 10 10 17 115
PD 10 10 17 115

2009
Category MQMR Aggregate cut-off
Chemistry Physics Mathematics
GE 11 11 8 178
OBC 10 10 8 161
SC 6 6 4 89
ST 6 6 4 89
PD 6 6 4 89