राष्ट्रीय ग्रामीण पेयजल कार्यक्रम कब से प्रारम्भ किया गया था ? - When was the National Rural Drinking Water Program started? - Rashtriya Gramin Peyjal Karyakram Kab Se Prarambh Kiya Gaya Tha ? UP GK in hindi, मिट्टी कृषि एवं पशुपालन 1972 - 73 question answers in hindi pdf 1973 - 74 questions in hindi, Know About 1971 - 72 UP GK online test UP GK notes in hindi quiz book 1974 - 75