See if company is engaged in agriculture and the company has taken necessary permissions then no complaint is maintainable otherwise you can complaint before RBI.

Dear

You need to file complaint with RBI. 

You lodge complaint through SP CID economic offence wing office is situated at lakdikapool hyderabad email ID is eow.khalid at yahoo. Com

Complain to the collector / Tehsildar regarding purchase of agricultural land by OCI 

send copy of letter to RBI 

1.  FIRSTLY, file a written complaint with the District Collector's office and have the Land confiscated, since agricultural land purchase by a Pvt. Ltd. Co. is possible only after taking due permission from the collector office.

2.  AFTER above, complain to RBI and Income Tax Dept., for investigation & prosecution.

You can complaint to RBI

Sir,

    Complain RBI on this issue.

    Search mail id through google and mail them, your complaint.

Collector/Tehsildaar. 

without the approval of the Reserve Bank PCI holder cannot purchase Agriculture land. file complaint before Reserve bank of india. 

To file a complaint, you need to visit https://cms .rbi.org .in. 

enter the general details on 'lodge complaint portal. 

It has recommended a company owned and controlled by an Indian and having foreign investment could directly buy agricultural land from farmers. However, a company controlled by a non-resident will be able to buy such land only after it is converted to non-agricultural land.

So NRIs cannot purchase any agricultural land or plantation property.

The complaint can be submitted to the land revenue department or the district collector who will order for investigation and initiate proper action as per law to seize the property