It was a term coined by Mayawati and now everybody is studying social engineering. So RJD chief Lalu Prasad Yadav has let it be known to Congress chief Sonia Gandhi that he has no objections to the return of ex-Bihar chief minister Jagannath Mishra to the party. It was Lalu who overthrew the Brahmin leader from the seat of power in the state in 1990. While Pranab Mukherjee is also keen to bring back Mishra who may not have any mass appeal any more but could influence the Brahmin vote in about half-a-dozen parliamentary constituencies others from the community are not as keen. Bihar PCC chief Anil Sharma,backed by some senior Brahmin leaders at the Centre,has in fact managed to block Mishras homecoming so far.