Solution:The copper plate grants of Prabhavati Gupta are found from Poona and Riddhapur. These inscriptions are important historical documents that shed light on the governance and administrative practices of the Gupta period, particularly under a female ruler. Prabhavati Gupta, ruling as a regent, issued these grants which include details about land donations, religious endowments, and the rights and privileges granted to the recipients. The copper plates are crucial for understanding the legal and societal frameworks of the time, as well as the role of women in leadership positions in ancient India.