Round was held in the morning probably 10 or 11 am, the test window was open for 90 minutes and one can give the test anytime in that 1.5 hour.
Tip 1 : practice on codeforces and codechef
Tip 2 : prepare a good resume
Tip 3 : may prefer solving the SDE sheet provided by striver_79
Tip 1 : put your entire valuable experience in brief
Tip 2 : try to put those things that really attracts the recruiter, will be better if your past experiences relates to the company