Chhattisgarh Police on Sunday arrested three persons from Uttar Pradesh involved in stealing diamond and gold ornaments worth Rs 30 lakhs on Friday night in Korba district. Four others are still at large.Korba Superintendent of Police Bhojram Patel said Prem Bhul alias Pinchu (29), Himal Bahadur Manjhi (32) and Deepak Bhul (32) were taken into custody. Efforts are on to nab four others - Kumar Bhujael, Bhim Singh, Padam Sawant and Poonam alias Chhoti. All hail from Nepal.On Saturday, Veer Singh Sandhu lodged a theft case with police.The police realized the criminals had taken bus from Raipur to Uttar Pradesh. They have seized three gold necklaces and a gold locket from them.