If I can keep the information in front of you, I believe you can make a better decision. KL and GITAM are considered to be universities. KL receives an A++ rating whereas GITAM only receives an A+. The NAAC rating represents the level of education. A higher rating is usually a plus.
In terms of placements, GITAM and KL are competitive, however KL boasts a 15-year track record of 100% placements whereas GITAM makes no mention of such a record. Therefore, I believe KL has a competitive advantage when it comes to educational standards and job placements.