Add green chillies,coriander seeds and small onions with salt and pressure cook.
The left over water can be used for rasam or ground along with paruppu.
Now add the seasoning and grind and your are ready to serve with rice and little ghee.
Notes
If you don't want seasoning to be ground you can add it after grinding.
This paruppu is served along with ghee and hot rice.
Even if we avoid adding ghee it tastes great.