About Coaching:- Teacher-Khan Sir Address-Kisan Cold Storage, Sai Mandir, Musallah pur, Patna 800006 Call-8757354880, 8877918018 About Video :- An excellent documentary about Hong Kong’s fascinating history right before Hong Kong’s 1997 return to Chinese sovereignty. About Khan GS Research Centre:- Here you will find General knowledge, Current Affairs, Science & Technology, History, Polity, Geography, Economics, […]