RJD leader Tejashwi Yadav on Saturday claimed he would be "happy" if Bihar Chief Minister Nitish Kumar's son Nishant entered politics as it would "save" the JD(U) from BJP and other alliance partners. Talking to reporters here, the former deputy chief minister, however, scoffed at Nishant's appeal to the people of the state that they vote for his father in the upcoming assembly polls as the JD(U) supremo was "100 per cent" fit.