Grind together coconut, small onions, green chilli and turmeric powder to a coarse paste without adding water.
Clean the banana flower, take the innermost pale yellow part and make it slits all over and chop it very finely.
Soak it in buttermilk until use.
Pressure cook the green gram with salt to 2-3 whistles. Drain and keep it aside until use.
Heat coconut oil, crackle mustard seeds, red chilli and curry leaves.
To this, add the chopped and drained banana flower and cook until soft.
add turmeric powder, salt and mix well.
further, add coconut masala and cook till raw smell leaves.
lastly, add the cooked green gram and mix once.
cook for another 1 minute and serve hot.