As per your priority, i.e.good faculty and personal development the order in which you should fill up the choices are:-

1. IT at IIIT Allahabad
2. CS at IIEST Shibpur
3. CS at BIT Mesra
4. CS at NIT Durgapur

The reasons for the above order are:-

IT at IIIT Allahabad is quite good. The coding culture is very good and it is becoming even better. As IIIT Allahabad is totally dedicated to CS and IT, the coding culture, technology enthusiasm etc. are bound to be better than the rest. Faculty is good.

Secondly, IIEST because IIEST is growing at a tremendous rate. Few years back, it was a state government college. But now after becoming an INI (Institute of National Importance), it has been growing very fast. The cutoffs this year has become so much better due to its performance and development. Faculty at IIEST (formerly BESU) has always been well known for research, development and it will be a good experience. Moreover IIEST Shibpur being one of the oldest institutions has got great alumni network which would help you later in your career.

CS at BIT Mesra is quite well known. Placements are very good. The faculty is okaish. Research is not a strong point here. Personal development is very good. And definitely you will definitely succeed. BIT Mesra is at third. Some might argue that BIT Mesra would be above IIEST or vice versa but IIEST now being funded by Central Government and being an INI has its own perks. But BIT Mesra is also a great option nonetheless.

Finally, NIT Durgapur. Off recently NIT Durgapur has been performing quite well but still I feel the growth has not up to the mark. Being an NIT you will get the advantage of the NIT tag. But faculty is not the best as far as I know. Research and environment could be better here. But if you want to be called an NITian, it is a good option too.