पटना में नमक सत्याग्रह कब शुरू हुआ ? - When did the Salt Satyagraha start in Patna? - Patana Me Namak Satyagrah Kab Shuru Hua ? Bihar Gk in hindi, Bihar Modern History Quiz 8 April , 1930 question answers in hindi pdf 19 April , 1930 questions in hindi, Know About 7 April , 1930 Bihar Gk online test Bihar Gk notes in hindi quiz book 16 April , 1930