Wash and cook raw banana till soft. I pressure cook for about 2-3 whistles.Raw Banana does not need much time to cook or soften .So while cooking does not add too much water, otherwise it will become too mushy.
When cool to handle, peel the outer skin of raw banana.
Mash raw banana.
To the mashed raw banana add curd,green chilli and salt.
Prepare the tempering.In a small kadai ,take oil.Add mustard seeds,urad dal and chana dal.Once they splutter add curry leaves and hing.Switch off .Pour this tempering on raita.Add chopped coriander leaves.Mix everything. If required add some more curd and adjust the consistency.
Serve the yummy raw banana raitha with rice / roti/ pulav.