Raigarh Mar 31 PTI A 65-year-old woman her son and minor granddaughter were found dead in their hut in a village in Chhattisgarhs Raigarh district on Thursday police saidAll the bodies bore injury marks inflicted with a blunt object on their heads which suggest they were murdered they saidThe incident occured in Dhawaidad village under Kapu police station limits and the deceased were identified as Duhni Bai her son Amrit Lal 40 and granddaughter Amrita Bai 14 an official here saidAs per preliminary information the trio had gone to a nearby forest to collect mahua flowers on Wednesday and returned to their hut located in the outskirts of the village which is around 250km away from the state capital Raipur in the night he saidSome local residents spotted them lying in a pool of blood on Thursday morning following which police were informed he saidCircumstantial evidence suggests the three were hit on their heads with a stone resulting in their death However the exact cause of the death will be known only after postmortem the official said adding a case has been registeredFurther investigation was underway he added PTI COR TKP RSY RSY