In drugs case, the SIT Excise officials will interrogate Tollywood hero Tanish on Monday. The officials will probe Tanish links with Kelvin, key accused in the drugs case, and Gishaan. It is learnt that the SIT collected crucial evidence from Tollywood actors and technicians over usage of drugs. Tanish will be the eleventh person to be interrogated by the SIT. In the last 10 days, director Puri Jagannadh, actor Ravi Teja and other technicians were questioned by NIT. Chief Minister K Chandrashekar Rao gave full powers to SIT Excise Director Akun Sabharwal.