After scrutiny of nomination papers filed for 30 constituencies in West Bengals first phase of assembly election, the authorities found those of 206 candidates valid, a CEO official said on Wednesday. Altogether 222 candidates have filed their nominations for the first phase of polling to be held on March 27. Of them, the nomination papers of 16 were found invalid, the official of the state Chief Electoral Officers office said. The nomination paper of the Trinamool Congress Joypur candidate Ujjwal Kumar and that of the BJPs Shankar Kumar who was nominated for Baghmundi seat were rejected. The ECI also found the papers of two Congress candidates - Nepal Mahato (Baghmundi) and Subhas Mahata (Kashipur) invalid, the official said.