Motihari: Members of East Champaran district unit of Indian Medical Association ( IMA ) went on an indefinite strike from Tuesday to protest against the attack on the house of a senior colleague Dr C B Singh by some anti-social elements in Balganga locality on Friday.All private clinics in the district also remained closed. Government doctors, private dentists, homoeopathic and ayurvedic practitioners, doctors on contract, medicine shopkeepers etc supported the strike.IMA secretary Dr B K Pandey said the situation may deteriorate further if the case filed against Dr C B Singh and his son Dr Bibhu Parasar is not withdrawn and the private security guard of Dr Singh is not released from custody immediately.According to police, around 50 persons attacked the house of Dr Singh in the evening of January 1, pelted stones, ransacked the house and vandalized the car in which Dr Singh and his family members received injuries. Dr Singh said the main accused is a resident of the same locality who had a heated exchange with Dr Singh on the issue of a minor car accident.The Motihari Chamber of commerce in its meeting condemned police inaction and expressed concern over deteriorating law and order, rising cases of extortion calls , snatching of cash and motorcycles, theft etc in East Champaran district. Presiding over the meeting of chamber, Birendra Jalan said traders of Motihari, Chakiya , Dhaka , Harsidhi and other markets are being threatened by extortionists daily. They expressed concern over the attitude of police which reached the spot 90 minutes after the attack on Dr C B Singh’s house.