Peerless General Finance & Investment — Unclamied amount

Sir,
This has reference to peerless general finance and investment company ltd certificate no.E5907247/510. my grand mother Invested few installments here and my dad name Snajay Jackson is nominee in this we tried many ways to contact you but we are not able to . so now i want to know the process or amount which is still unclamid and How to get the invested money back? Kind attention is invited to resolve the matter. This money was invested in 1981 and there after no correspondence. If you could resolve i would be thankful to you sir