BITS Goa is better than DTU and NSIT. Since the introduction of the home state quota, the quality of the student crowd has drooped down at these institutes. Due to the no reservation rule, BITS has a better peer group. Top NITs such as NIT T, NIT W, and NIT K are comparably better than BITS, but the difference margin is decreasing.
BITS Goa placements have been good, even during COVID. During 2021 placement drive, the average CTC offered was INR 16 LPA. While the highest CTC offered was INR 43.3 LPA. Some of the major recruiters that take part in the placement drive are Microsoft, Amazon, Google, Flipkart, etc.
I have a few friends from BITS Goa, so I think I can give you some insight regarding the institute. It is a well-reputed college with a beautiful campus. You will have good exposure and decent opportunities here.
Comparably, DTU, NSUT, and top NITs are better as compared to BITS Goa.