Sibghatullah Mujadadi, the chief of Afghanistan's Mushrano Jirga or Upper House of parliament, rendered his resignation on Saturday. 'I am rendering my resignation to the president and the nation and requesting his Excellency the President to approve it,' Mujadadi announced at the joint session of parliament resumed after winter vocation. Citing ignoring his advices for the decision, Mujadadi, without giving further details, said, 'Three or four months before I rendered my resignation.' Mujadadi made this announcement in the presence of President Hamid Karzai while he was asked to pray and conclude the session. 