Patna

Go to the official website of RRB, choose the region of RRB. And check your application status there.

Hi,
Patna is the center for this exam hence as your 1st priority they give you Patna as center.

No, I think you have to go to Kotak as it has a better atmosphere for study.

Refer the following colleges:
-Patna College
-St. Xavier's College
-Amity College of Commerce, Art and Science
-Magadh University
-Nalanda Open University
-Jai Prakash Vishwavidalya.

The questions asked in the entrance exam covers basic four parts i.e., language (English, Hindi or any other), general knowledge, current affairs, print and electronic media. The questions are asked around these four aspects. This is done to analyses the knowledge bank of a student, how much he/she is aware of the surroundings. And your proficiency in your language is tested.
So, read newspaper daily, watch news channels, read books etc. It will definitely help you to appear in entrance exam.

Yes, you can get admission in this college as your % is very good.

There is a list of colleges on the Website of Patna University. Go ahead.

Hello,
Every place is good to study as it depends on how much you learn. And please go with following link for BCA colleges with all details. https://www.shiksha.com/it-software/colleges/bca-colleges-Patna
Thank you.

Kindly predict your college through this college predictor. The rank predicted might not be accurate, but it certainly gives an idea to the aspirant.
https://www.shiksha.com/college-predictor

You can check the link to get information about it
https://www.shiksha.com/college/image-college-Patna-34349
Good luck.