What is the validity of stamp paper in Andhra pradesh?

In the Indian state of Andhra Pradesh, a stamp paper remains valid for up to six months from the date of purchase. According to the Andhra Pradesh Stamp Act, if a stamp paper is not used within this time frame, it becomes invalid and cannot be used for any legal purposes. To ensure the validity of stamp papers, it is essential to check the date of purchase and use it within the specified period.