Sir, Actually I am in Delhi University and assigned with a Innovation Research Project on Tribes of Jharkhand. So, along with my 3 mates, we did survey work over Palamau and Garhwa district there(Specifically on Amba Khorea Village, Ranka, Tulbula, Tamdagha, and some remote areas near Betla National Par, etc) . Earlier to this we already done with Simdega, Hazaribagh, Chaibasa Etc(In 2015)