The major Greenhouse gas (GHGs) which causes global warming are water vapor, carbon dioxide (CO2), methane (CH4), ozone (O3), nitrous oxide (N2O) and chlorofluorocarbons (CFCs). These are the gaseous compounds in the Earth’s atmosphere that absorb infrared radiation, trap heat and contribute to the greenhouse effect. Agriculture is a major source of emission of GHGs globally and this sector shares 24% in the global GHG emission (FAO). The main gases emitted are CO2, N2O and CH4. Increased use of production inputs such as mineral fertilizer and lowland paddy cultivation has made agriculture more GHG-intensive. The emissions mainly occur at the primary production stage viz., production or manufacturing and use of agricultural inputs, farm machinery, soil disturbance, residue management, irrigation and crop residue burning. Therefore, reduction of emission is of prime importance so as to reduce the contribution of agriculture sector to global warming and mitigate climate change. Some of the major agronomic strategies to reduce GHG emission from agriculture include zero tillage, reduction in crop residue burning, efficient fertilizer use and efficient water management1. Also shallow land transplanted rice cultivation (flooding type) is a major emitter of CH4 gas which also covers the highest area. Therefore, strategies like System of Rice Intensification (SRI) method and direct seeded rice cultivation must be popularized. In order to prevent global food catastrophe and save livelihoods of farmers and human race as a whole, mitigating GHG emission from agriculture is of utmost importance.