I gave my GMAT exam there yesterday (28th July 2021). The center is open and the process was smooth.
A word of caution: The direction to the institute is wrong. The institute is on the main road rather than on an inside road shown on Google Maps. You can ask people inside the golf city to reach the correct destination. Also, the entrance is from a smaller gate (and not from the main gate). It is on the same road as the main gate.
A better direction to the center would be: Search "Confort Hotel Vista Residency" on google maps -> Reach there -> Move towards "Multi Facility Complex" from Comfort Hotel and take the next right turn before "Multi Facility Complex" -> The road will end at the smaller gate of Ansal Technical Campus, Lucknow