My friend is doing a contract based job. The contract demands minimum 2month notice period before he quits. He sent his resignation to C.E.O about 2 months ago by post. He sent the letter “Under Postal Certificate” (UPC), & preserved its receipt. Now he has given a written request to relieve him of his official charge. But the concerned HR Deptt denies receiving any such resignation letter 2months ago. Although he sent an ‘ordinary post’, but it was UPC. What should he do? Does UPC receipt hold any legal value in India? How can he proceed so that they may not take his 2months salary!