Cognizant — cognizant interview status - under review

Address: Chennai, Tamil Nadu, 600096

Hi
I gave interview on feb 9th for dot net mvc and cleared two rounds of technical and hr discussion at kandanchavadi knc facility, chennai. I received an email from tag saying ur application is under review and give us sometime to get back with an update. How long should i need to wait to get an update before following up with the recruiter. Is there anyone who gave interview on the same date and place waiting for offer letter.