Wash and pat dry bindi, cut length wise
Season with salt,chilli powder,turmeric powder, coriander powder, add rice flour or corn flour for crispness, toss or mix well, (well season bindi with this spices)

In a pan heat oil and lightly fry them in few batches on medium high heat, transfer in a bowl

In the same pan heat more oil and cook lightly sliced onion without salt, when onions become a bit softer add tomato paste mix well with onion

Cook onion and tomato paste for two minutes then add same spices as season bindi this time just flavouring the onions with salt, cook until everything becomes soft, add sliced green chilli

When onion cooked well add pre cooked bindi mix well and cook for a minute or two to combine the onion flavour into bindi, add fresh coriander and little bit of lemon juice for extra tang and flavour (all spices depends on the amount you cooking), enjoy with rice or chapati