बिहार के कौनसे जिले का सर्वाधिक क्षेत्र नलकूपों द्वारा सींचा जाता है ? - In which district of Bihar, maximum area is irrigated by tube wells? - Bihar Ke Kaunse Jile Ka Sarwaadhik Shetra Nalkoopo Dwara seencha Jata Hai ? Bihar Gk in hindi, Canals and Irrigation ShivHar question answers in hindi pdf SitaMadhi questions in hindi, Know About BeguSaraay Bihar Gk online test Bihar Gk notes in hindi quiz book Samastipur