Hello Gautam Agrawal.

There are many good coachings in Allahabad like.

1)Parakh academy.

2) paramount.

3) career coaching centre

4)Marvel academy.

5) KD campus.

6) Career launcher.

7) Mahindra's

Etc.

These are few relatively good coaching institutes of Allahabad. You can visit and determine the best.

Ok good luck