PM Narendra Modi, who escorted newly-elected Lok Sabha Speaker Om Birla to his chair, complimented him on his smile. "It's a huge responsibility...to sit on this post," PM Modi said and told Birla that he has been blessed with a "meethi-meethi muskaan" (sweet-sweet smile) which keeps the whole House happy. "It's said a polite person...achieves success effortlessly," the PM added.