157 is my engineering cut-off if get a top colleges
Yes if you score more than 157 then definitely you will get it.
You'll need a cutoff of above 185 to get a good college, if you're General category. Any reservation will be helpfull. Good colleges like PSG have a cutoff above 195. For St Joseph college, you can get CE, EC, EEE, IT and ME. CS has a higher cutoff there.
Good Luck.