Both are the good colleges but as per the reviews in term of placement, Industry Exposure, Affordability IIIT Sricity is the best option to opt but it also depends on your convenience & the branch for which you want to apply. For the genuine reviews you can go through with given below links.
IIIT Sricity
NIT Andhra Pradesh
College Comparison based on Courses, Placement, Rank, Fee
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile