If you want to know the experiences of people who have taken UPSC Civil Services Interviews 2011 in the board of Lt. Gen. (retd.) Nirbhay Sharma, then you can follow this link on an online forum.
Here are some excerpts from that discussion:
nirbhay sharma board..
hey guys i had nirbhay sharmas board.. very short intrvw.. lasted fr just 18-20 mins… i could not give very good answers.. did he ask anyone abt internal prob of pakistan….
I had N.Sharma Board also, it was kind of stressful as well as speedy interview.. lasted for 25-28 minutes. Waise Ajay Bhai aapke comments padh kar kaafi tension hoa gayi hai.. I am just hoping that everything will turn out +ve for all of us…
Cheers
See image of discussion below: