Picture used for representational purpose only GUMLA: A 30-year-old sand trader was shot at by another near Purnapani under sadar police station on Sunday night, police said on Monday. A critically injured Chandan Kumar Roy alias Chandan Prasun is currently admitted at Rajendra Institute of Medical Sciences in Ranchi. “Sand trader Ankit Minj has been detained after Roy accused him of firing shots at him,” officer in-charge of sadar police station Dayanand Kumar said, adding, “Rivalry over sand trade seems to be reason behind the firing but we are investigating from every angle.” Roy is a resident of Officers Colony in Simdega. A small-time contractor who is involved in the sand supply business, Roy is the nagar pramukh of Shiv Sena party in Simdega district.