Wash and clean Karonda. Now cut it into two halves and remove the seeds as shown in picture

Chop the onion into four parts and keep aside
In a pan take a tablespoon of mustard oil and heat it. Once it is nicely heated and smoky, add mustard seeds and a pinch of hing along with curry leaves

Now add Chopped onions to this and saute it for 2 minutes

Add chopped green chillies and saute it for a minute or two and then add haldi powder, red chilli powder and salt

Now add Karondas to this, mix it well and cook for 4 to 5 minutes

Karonda fry is ready serve it with rice or Roti