Allahabad

Hello Vaibhav,
You may use the college predictor tool from the link below to know your chances of getting a seat at NITs:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
However, your chances are low to get admission at NIT Allahabad.

If you want a good coding culture, then you should go for IIIT, Allahabad.

NIT, Trichy is one of the best institutes for CSE. It is top among the NITs and placements for CSE are pretty good here. The only issue you might have is of adjusting to the new environment. Also, Delhi is much better to live than Trichy. So take your decision considering all the facts.

Yes, but in chemical or biotech or production branch.

I think there is hope according to your category.

Very rare chance. Choose some other branches like biotech and get a decent CPI in the first year. Then you will get a chance to change your branch.

Very rare chance since you are from general category.
Go for some other branches like chemical, biotech and with a good CPI in the first year, you can change your branch.

Hi Suyash, For B.A. Entrance exam in ECC Allahabad, you will be asked from general awareness, History, political Science and ancient history of class 12th level. Just be aware of your surroundings and keep your good hand on current affairs. Best of luck.

Visit Allahabad University's official website for such news of UP education board's official website. Do upvote and follow, if my answer helped you in any manner.

You have to do the choice fill-up at JOSAA website after registering with JOSAA. You can put as much college as you want according to your preference. Then after that cutoff will come and according to your rank, you will get the colleges. But make sure that you can't change the preference order after the cutoff or 1st round. After getting college, you have to visit the near NIT for getting enrolled in that college.