The rationale behind issue of relieving letter by the employer on the normal termination of the contract of employment of an employee such as resignation, retirement, statutory retrenchment or discharge on account of surplusage of employees is to indicate the employee's positive separation once for all from the organization and the total extinction of his employment liabilities.
The absence of such a letter from the previous employer for whatsoever reason, on the contrary, will not validate the employment separation and can lead the prospective employer to take presumptuous inferences of any kind such as ploy for dual employment, abscondence etc. and to reject the candidacy if selected already.
In a real-life situation like the one narrated in the post, to the best of my limited understanding of the problem, a positive solution lies only in the prospective employer's magnanimity, confidence reposed in the candidate and the urgency of hiring him at any cost.
Alternatively, you can issue a legal notice on the previous company and the non-service of the same would be an evidence for its subsequent closure and the available documents with you can serve as proofs of your second employment and experience.
22nd February 2016 From India, Salem
As you mentioned that absence of relieving letter is treated as fake employment or dual employment by the prospective employers. But i have submitted them my bank statements in have my previous company name as depositor.
Can you put some light on issuing legal notice to the previous employer and also on issuing self affidavit to prospective employers(i found this solution on some websites)
23rd February 2016 From India, Pune