Hello Namita,

Congratulations on securing 306 category rank.

It would be advisable that you go through the previous years cutoffs for the college you desire to take admission into.

Here is the link to cutoffs,

https://poly19.dtemaharashtra.org/diploma19/ (for all rounds)

https://poly19.dtemaharashtra.org/diploma19/admin/uploads/cap1.pdf ( round 1)

Here you can find the cutoof for Govt. Polytechnic Mumbai.

Make sure you look for proper cutoffs i.e. Minority, State level, Home district, etc.

All the Best!!