Hello Mrityunjay,

All the colleges you have mentioned above are best but in my personal opinion you should go for National PG College Lucknow, as this college has some great and experienced faculty. 

National PG College being an old college also have much reputation across India and it's alumni are now recognized world wide. Being situated in Lucknow will also give you a better college life.

For more details about National PG College, click on the link below:-

https://www.careers360.com/colleges/national-post-graduate-college-lucknow

Hope this helps.

Good luck!!