With 61.18% of land under cultivation, Bihar is endowed with three agroclimatic zones where 200 species of medicinal plants are found and several of them are cultivated in a total of 2,600 hectares. Mentha and lemongrass are largely grown in the state.

1. Rajendra Agricultural University, Pusa, Samastipura
2. Anne Marg, Patna
3. State Medicinal Plant Board, Patna
4. Baidyanath Ayurved Bhawan, Patna