Addressing a rally in Bihar's Darbhanga, AIMIM chief Asaduddin Owaisi said that RJD is not ready to talk to him for a tie-up in upcoming Bihar polls. "Tejashwi Yadav must realise that his immaturity will cost him and his arrogance will weaken him," Owaisi added. RJD is part of the Mahagathbandhan alliance in Bihar which includes Congress and Left parties.