Gpa

Power of Attorney is given in the name of individuals, and their roles/designations/status may not be a bar in giving POA.

Yes,seller can appoint purchaser as his attorney and give him poa but purchaser should be individual as person and not firm or company or corporation.

What is the relevance of granting PoA to a purchaser ?

Case in detail : (A) is the absolute owner of the property. And he is selling the property to (B) and his wife (C) (both are individuals)

(A) being the seller  has executed a GPA  in favour of (B) (one of the purchaser) empowering him to present and admit the execution of the the  Sale Deed.  (it appears more or less like a Special Power of Attorney)

Is that okay ?

regards