In Rajasthan, Congress MLA from Luni, Malkhan Singh Bishnoi, a key suspect in Bhanwari Devi case on Monday appeared before the CBI for interrogation.AIR correspondent reports that he was missing for over a fortnight and had not appeared before the CBI even after repeated summons and notices by the agency. The CBI on Monday also questioned Leela Maderna, wife of suspended Minister, Mahipal Maderna and a few others.