PATNA, Jan. 29 -- With the ruling Janata Dal ( United) led by Chief Minister Nitish Kumar once again realinging with BJP led NDA to form new Bihar government on Sunday , the Rashtriya Janata Dal ( RJD) taking the new role of principal opposition started the credit game by issuing advetisements in newspapers portraying how its youth leader and former deputy chief minister Tejashwi Yadav was instrumental in big ticket decisions taken in the previous Mahagatbandan (Grand Alliance) government....