Who were the rulers of Bhopal who provided financial support for the preservation of the ancient site at Sanchi?

Shahjehan Begum and Sultan Jehan Begum

The correct answer is Option 4 - Shahjehan Begum and Sultan Jehan Begum

The rulers of Bhopal, Shahjehan Begum and her successor Sultan Jehan Begum, provided money for the preservation of the ancient site at Sanchi. No wonder then that John Marshall dedicated his important volumes on Sanchi to Sultan Jehan. She funded the museum that was built there as well as the guesthouse where he lived and wrote the volumes. She also funded the publication of the volumes. So if the stupa complex has survived, it is in no small measure due to wise decisions, and to good luck in escaping the eyes of railway contractors, builders, and those looking for finds to carry away to the museums of Europe. One of the most important Buddhist centres, the discovery of Sanchi has vastly transformed our understanding of early Buddhism. Today it stands testimony to the successful restoration and preservation of a key archaeological site by the Archaeological Survey of India.