Ravish Kumar Prime Time , 17 January 2018 , SSC CHSL & CGL भर्ती लटकी , BPSC Biharआयोग -चय https://www.youtube.com/watch?v=IV38IjwHI5s&index=52&list=PLz-HKEn2dbUP1My0A6_gNHpWe3nkkL-9d