According to Careers360 anlysis, Koneru Lakshmaiah Education Foundation, Guntur has got AAAA+ which makes it an outstanding college overall cut-offs of national / state level Entrance exams, Accreditation and Reward status, Publication record from Elsevier’s indexing database - Scopus to pursue B.Tech program whereas GITAM University, Visakhapatnam has got AAA+ which says this is a good colleges for the same overall so as per the rating you are advised to put KLU at first and then consider Gitam.

Also, it would be good if you consider your interest, eligibilitty & convenience before you make any decision.

For reference, you can go through the below links -

https://engineering.careers360.com/colleges/koneru-lakshmaiah-education-foundation-guntur

https://university.careers360.com/colleges/gitam-university-visakhapatnam 

Good Luck!!!