According to me, you should go for IIIT allahabad IT branch as regarding the IT's, the college is ranked as one of top for the academic and placement in this Field of engineering. Since, IIIT allahabad is a government college, it has a value and name of its own but in case of BITS, only the pilani branch is highly valuable, while the other two are still enhancing themselves in various fields.

Hello,

I hope you are doing good,

Talking about coding competitively there have been less chance a team from BIT do well in coding competitions. If we talk about a "wide campus" but the total number of students there which is much higher than you would expect at IIITA.

And for those who talk about packages, the standard IIITA package this year was 11.2 lakhs and BIT was 6.33 lakhs.

When I get to the area, I am sure that Allahabad is a better place than Mesra.

All in all, you can choose any program in IIITA over BIT Mesra at any time.

IIIT ALLAHABAD- https://www.careers360.com/university/indian-institute-of-information-technology-allahabad

BIT MESRA-

https://www.careers360.com/university/birla-institute-of-technology-mesra