Bihar Deputy Chief Minister Tejaswi Yadav was on Monday named leader of the Rashtriya Janata Dal (RJD) legislature party in the Assembly.
Tejaswi Yadav, a former cricketer, is the younger son of Rashtriya Janata Dal chief Lalu Prasad.
Earlier, the RJD's 80 legislators authorised Lalu Prasad to choose the leader in the House.
The RJD is the biggest party in the tri-party Grand Alliance, which also includes Chief Minister Nitish Kumar's Janata Dal-United (JD-U) and the Congress.
Lalu Prasad had earlier said Tejaswi Yadav would play an important role in the new Bihar government.
The RJD won 80 Assembly seats followed by the JD-U (71) and the Congress (27). The BJP bagged 53 seats and its three allies got five seats.
