Impressed by the success of total prohibition in Bihar, Chhattisgarh Chief Minister Raman Singh on Tuesday announced here that he will impose prohibition in his state soon."I will impose a phase wise prohibition in Chhattisgarh," the Chief Minister told media here.Singh said prohibition in Bihar is a good step by Chief Minister Nitish Kumar. "Prohibition is a positive move for people and the state."Nitish Kumar has repeatedly urged Prime Minister Narendra Modi to impose total prohibition in BJP-ruled states.Bihar imposed prohibition last year on April 5.