Power of attorney for sale of land in a village in birbhum district in west bengal

She can execute a General Power of Attorney in your favour to sell the lands.  You can consult a local lawyer who drafts the deeds or a Document Writer or search Google for the format.

Your mother has to execute and registered a special power of attorney in favour of you authorising you to sell the property.

I concur with the opinion and advise of learned experts, your mother has to execute a registered power of attorney in your favour.

Your mother can execute a registered general power of attorney authorising you to do all the transactions pertaining to the immovable property and if you wish to get the power of attorney deed drafted, you may contact any advocate in the local having expertise in the field and proceed as suggested 

Sir,

I want a scanned copy or a photo of any Power of Attorney to get an idea of the Power of Attorney... Please some one provide me...

You can get a proper power of attorney prepared by an experienced lawyer in the local suiting your situation and facts, hence please contact one in the local.

Template(s) or sample(s) are not provided on this platform.

It is better to consult a local prudent lawyer.

1.  You may have seen the affidavit, in the same format it is prepared. The contents and conditions may be mentioned as per your requirement. It can be prepared in nearest court of your area.