Sterling Tree Magnum — due amount not received

Address:

Ludhiana, Punjab, 141008

Dear sir,
I have purchased two teak tree on 18/02/1997 in my son's name himanshu &kunal tangri vide their application no. A142162 &a142135 and certificate no. J10175 &j101733 issued by the stm on 07/06/1997.
As per the terms co. Supposed to make interim returns payable by 17/02/2003 and second interim returns by 17/02/2009.

I have tried my best to locate their address (Address mentioned in the certificate is now changed as confirmed by one of my friend).

There is no response from the company.

My present residence address :
Block no 23
House no 489
New kidwai nagar
Ludhiana-141008