CBI Sought information on some of the projects awareded during YSR Rule during 2004-09. As the Chairman was close to late YSR, it would have had a bearing on the CBI seeking information.
As such, there has been no untoward negative news as far as fundamentals of the business is concerned.
I am not sure why you are so worried about the price? If you have conviction about the business, any drop in share price should be construed as a buying opportunity.
Chandra