My friendhave worked in psu as a probationer then resigned after one month notice period. but could not get relieving order in that period hence on expiry of notice period he left the office and waited at home. after 2 months he joined central govt organisation and after working there for 3 months he resigned and got relieved . when he ame back he came to know that psu has not accepted his resignation till now. so he want to withdraw his resignation but gap will be counted as extraordinary leave for the period in which he had served central govt. what should be advice to him? please suggest some remedies to his career