IMPHAL, June 4: A Chinese made hand grenade was recovered from the Thangmeiband Irom Leikai residence of Dr. Ch. Chandramani, former Director health services early this morning at around 7 am.The grenade was later safely retrieved by the police bomb squad and safely disposed off at Langol.However it is not clear as to why the bomb was left. No individual or organizations has claimed responsible for the incident.