Meanwhile, Modi will be formally elected as the leader of the BJP Parliamentary Party at its meeting here on May 20 ahead of taking oath as Prime Minister.
BJP chief Rajnath Singh has said the NDA allies will also be invited for a meeting on the same day where the leader of the coalition will also be chosen.
Modi arrived in Delhi yesterday to a rousing welcome by the party and supporters and went to Varanasi where he took part in ‘Ganga aarti' before returning to the national capital last evening.