बिहार सरकार ने किसकी जयंती को ‘श्रम कल्याण दिवस’ के रूप मनाने का निर्णय लिया है ? - The Bihar government has decided to celebrate whose birth anniversary as 'Shram Kalyan Diwas'? - Bihar Sarkaar ne Kiski Jayanti Ko ‘Shram Kalyann Diwas’ Ke Roop Manane Ka Decision Liya Hai ? Bihar Gk in hindi, General Studies Vishvakarma Jayanti question answers in hindi pdf JayPrakash Jayanti questions in hindi, Know About Narendra Dev Jayanti Bihar Gk online test Bihar Gk notes in hindi quiz book Ambedkar Jayanti