Ranvir's younger brother Balbir Chand lodged the FIR at Mansi police station in the district alleging that the accused have usurped the family property and threatened to kill him when asked for his share in it, the police said.
The FIR against the Khagaria MLA and others was lodged on December 31 under various sections of the IPC.
Mansi Station House Officer Ram Uday Tiwary said Ranvir has six brothers but their ancestral land has not been divided yet and the brothers alleged that Ranvir, an ex-MLA, doesn't give any share of the agricultural produce from it.
Tiwary said Ranvir, Poonam and Krishna also lodged on December 31 two cases against Balbir Chand and other brothers for beating up one of their cousins and firing at their house.
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The SHO said that a Delhi-based maize trader Rajesh Sultania has also filed a case against Ranvir for holding one of his employees Deepak Kumar hostage and forcibly selling maize worth Rs 2 crore purchased and kept in a depot in Khagaria.
Tiwary said the case would be looked after by senior officials.
Ranvir said the FIR was politically motivated and Lok Janshakti Party (LJP) instigated his brothers to file it.
"The state elections are approaching and our political opponents want to malign us. The property on which my brothers are staking their claim has been bought by me in the name of my wives," he said.
Both the MLA and her sister are wives of Ranvir.
Ranvir said he left his ancestral property for his younger brothers and purchased over 150 acres of agricultural land around the year 2000.