Hi..... Himanshu......bhai.......I am from Jawahar Navodaya vidyalaya.....in my school the teacher of history is very intelligent and she is also a good member so I can got a knowledge so please add me in ur friend.....I am student of class 11 but in this ID......I help u in class 12 to take the help of our mam....and give u better knowledge ...because my mam is very helpful......