I believe youre referring to 140/300 in JEE Main. You percentile will be approximately between 96.9-97.3 with this score and corresponding JEE Main Rank anywhere around 30k and a OBC NCL Rank anywhere around 7-7.2k.

The last Cutoff for OBC NCL Delhi Region at DTU Information Technology, last year was CRL 67k. Hence, you have fair chances of securing IT, since youre a Delhi Region Candidate besides having OBC Categorical Advantage. Perhaps till last round of JAC Delhi Counselling you even have chances of Computer Engineering at DTU.

For more information regarding DTU Cutoff do follow the link below

https://www.careers360.com/university/delhi-technological-university-delhi/amp