Did You Know –
Masnawi is the name given to a long epic poem describing the battles fought long ago and past events. It may also contain philosophical or ethical themes. The most famous masnawis are Shah-Namah of Firdosi, Masnavi-E-Roomi in Persian and Zehar-E-Ishq in Urdu. Even epic poems of India, Mahabharata and Ramayana can be called masnawi.
Mirza Ghalib even wrote a masnawi on his immense love for mangoes – called Ghalib Masnawi Dar Sifat-e-ambah

Source: http://shayari.co.in/what-is-shayari