RAJ KUMAR   Ranchi, June 23: Five days after the murders of Sweta Singh, 17, and Praveen Singh, 14, at their home in the Janak Nagar neighbourhood of the Pandra police station in the capital city of Jharkhand, police are still groping in the dark over the motive behind the gruesome murder.   Although … Continue reading 5 days on, Ranchi police groping  in dark for headway in double murder mystery