Amid the continuous verbal spat between CM Nitish Kumar and RJD leader Tejashwi Yadav, in another scathing attack on Lalu Prasad Yadav, Kumar on Friday launched a scathing attack and reminded that the Rashtriya Janata Dal (RJD) patriarch had appointed his wife, Rabri Devi, as CM in 1997 when he was jailed in connection with the fodder scam.