State Congress MP Kavuri Sambhasiva rao, who was angry with party high command for not offering him any Minister post during the recent reshuffle of Dr.Manmohan cabinet, has sent his resignation letter to Congress party Chief Sonia Gandhi few days ago. Later, he was summoned to New Delhi and Prime Minister has tried to pacify him during their half an hour meeting. But, even then also he made it clear that he would like to stick to his resignation letter. He once again has submitted his resignation letter to Loksabha Speaker Meera Kumar recently, but a post dated resignation letter. In his letter he asked the speaker to accept his resignation letter only after January 1st next year, as if he wants to keep his options open till then.