Hello Aspirant.

Congratulations on securing this rank.

Since the closing ranks for colleges are not available anywhere so I cannot really give you any suggestions regarding the colleges that you can get with this rank. I choose not to guess in this matter as it is a sensitive issue and beating about the bush isn't an option. 

Coming to your rank, with my knowledge, it will be tough to get mechanical in Osmania University and JNTUH as they are one of the most sought after universities and there will be many more candidates with better ranks waiting for the seats. Belonging to SC category can prove to be advantageuos though.

I would suggest you to participate in the counselling properly and wait.

Visit https://engineering.careers360.com/articles/ts-pgecet-counselling to get detailed information regarding TS PGECET counselling.

Hope that helped.

All the best!