References:
1.https://en.wikipedia.org/wiki/British_Raj
2.https://en.wikipedia.org/wiki/Hyderabad_State
3.https://en.wikipedia.org/wiki/Kashmir_conflict
4.https://en.wikipedia.org/wiki/Indian_integration_of_Hyderabad
5.http://twocircles.net/2011sep17/fall_hyderabad_17th_september_black_day_human_history.html