Hi rayyan
The cutoff rank for information technology is completely dependent on your caste means different caste will have a different cutoff rank with comparing with the caste SC ST have more cut off rank and then remaining have less cutoff rank 
Basic cutoff rank for information technology to take admission in top colleges you need to score  rank less than 10,000 .if you need to do your information technology top 15 colleges you need to score rank less than 15,000 
please check out the cut off rank for information of technology based on your caste so you can come to know what rank you need to get so that  you can get admission in information technology in the best college 
All the best