New Delhi, March 24 -- After Congress leader Pawan Khera took on Bihar Chief Minister Nitish Kumar on the controversial National Anthem video and his health condition, Union Minister Rajiv Ranjan (Lalan) Singh on Monday said that he should be concerned about himself, not the Bihar CM.

"He need not express any concern. Pawan Khera should be concerned about himself. Nitish Kumar is healthy and contributing to the development of Bihar...They can do politics if they want but they have no base in Bihar. They are walking on the crutches of RJD," Lalan Singh told ANI.

Earlier in the day, Bihar Minister Mangal Pandey took a sharp dig at Rashtriya Janata Dal chief Lalu Prasad Yadav and his family, calling them the "most non-serious politicians" ...