While digging for piling work to build a house at the Diara, around 10  km north of Patna, the landowner came across thousands of large bricks.

Vijay Kumar Choudhary, archaeologist and executive director of the Bihar Heritage Development Society, confirmed Harappan bricks [2] had the proportions of 1:2:4 in terms of thickness, width, and length.

He said the state archaeological directorate's move was a step in the right direction to establish that human settlements existed in the area.

Chechar in Vaishali is a Neolithic site, while remains from the Mauryan period have been found during excavations at Didarganj in Patna.

The villages in Raghopur include Paharpur, Jurawanpur, Fatehpur, Birpur, Chaksingar, Rampur, and Shiv Nagar.