The Prime Minister Shri Narendra Modi spoke to Chhattisgarh Chief Minister Dr Raman Singh on the unfortunate tragedy in Bilaspur. The PM spoke to Chhattisgarh CM Dr Raman Singh on the unfortunate tragedy in Bilaspur. The PM expressed concern over the tragedy. The PM has asked Dr Raman Singh to ensure a thorough investigation & action in the entire issue. The PMO said in a tweet.