Plot occupied by other person

If she is the owner then she only has to take steps to get trespasser out of the property either by personal approach or through court. 

She can give power of attorney deed in favor of her close relatives back in India to deal with the subject matter as per law. 

She can appoint  her near and dear as her power of attorney and authorised to take legal action to dispossess encroached.

Very well analysed, opined and advised by learned senior experts, which I fully agree. 

In addition to above she may appoint an advocate / attorney with attested SPA to take care of her property.

However, if the encroacher has moved the Court to declare him as "owner by adverse possession", she has to seek professional services of a local prudent lawyer to contest it, which may be from this site or some other known / through known sources. 

Thank you Sir.

Firstly obtain encuberance certificate from registration department and find out any further registrations are made,if yes, file a case for declaration of title,if no,@file a case against the tress passer to vacate the property and hand over to the owner.