I don’t think that they have any minimum CGPA conditions. i have seen many people having 6-7 CGPA got placed in these companies example is Simran Singh got placed in Amazon.
These big computer giants gets 1500 application daily and most of them are high pointers so they want something different from pointers. if you really have something different in you apart from academics you could be hired in these firms.
so don’t give a shit about high CGPA and concentrate on your work and create difference from others you will surely get recruited in these firms.
Best wishes 🙂