What actions were taken by Alexander Cunningham when he visited the ancient building of Sanchi Kanakhera in Bhopal?

Alexander Cunningham visited the place and spent weeks in the neighbourhood of the main architecture. He made several efforts to understand the significance of the building. He took a drawing of the place and also led to the deciphering of some valuable scriptures. Proper excavation of the place was done and the reports of the investigations were published in a combined work.