राष्ट्रीय विकास परिषद (NDC) को ऐतिहासिक रूप से किस संगठन से प्रशासनिक सहायता प्राप्त होती थी?

Which organization under the Ministry of Statistics and Programme Implementation (MoSPI) officially calculates and reports the GDP of India?

India's Fourth Five-year plan was started in which year?

Which crops of high-yielding variety (HYV) seeds were primarily introduced during the Green Revolution in India?