Rashtriya Janata Dal (RJD) chief, Lalu Yadav and amp;rsquo;s son Tej Pratap Yadav tied the knot with RJD leader Chandrika Prasad Rai and amp;rsquo;s daughter Aishwarya Rai in Patna on Saturday. and amp;nbsp;Tej Pratap Yadav is elder son of Lalu Yadav. Bihar Chief Minister Nitish Kumar also attended the marriage ceremony. and amp;nbsp;