video contains detail explanation of harappan civilization from tamil nadu history book of class 11th. video included maps and images of harappan civilization. google link to download tn history book https://www.instamojo.com/iasportal/t... https://www.instamojo.com/iasportal/t... if u like plz do like, share with your friends &,subscribe to my channel. thanks for watching. #gpscclass1,2,3 #upsc #tamilnaduhistory