Both colleges are decent enough and have their own uniqueness but I'll recommend you as my personal choice to go with Sanskriti University. The reason being eventhoigh infrastructure and ambience of GLA university is more bigger and better than Sanskriti university, when it comes to placement, Sanskriti university has got a little edge over the later one. And also there's a huge difference in the fees structure of both of almost 1.5-2 lakhs. Sanskriti University charges approximately 4.76 lakhs for the full 4 years btech course while the other one costs around 6.36 lakhs.

Kindly refer to the links below for more detailed information..

https://www.careers360.com/university/sanskriti-university-mathura

https://www.careers360.com/university/gla-university-mathura

Best wishes. Thank-you.