The CBI today carried out searches at six locations in Jharkhand and Bihar including residences of three MLAs and an industrialist for alleged corruption and horse-trading during the recent Rajya Sabha elections. AIR correspondent reports, a case has also been registered. CBI teams carried searches on the premises of three MLAs — K N Tripathi (Congress) at Palamau, Suresh Paswan (RJD) at Deogarh and Vishnu Bhaiyya (BJP) at Jamtara — and industrialist R K Agarwal, who was one of the independent candidates in the recent Rajya Sabha elections .The election held on March 30 was countermanded following allegations that certain candidates were trying to reach the Upper House through horse-trading. The CBI has registered the case after obtaining the original FIR registered with the Namkum police station following the recovery of over two crore rupees cash from a vehicle on poll day.