Wipe ladyfingers dry with a clean kitchen towel. Cut into large pieces.
Heat oil in a non stick pan, add ladyfingers and salt. Toss and cook on medium heat for 3-4 minutes.
Roast besan in another non stick pan till fragrant.
Place yogurt in a bowl. Add turmeric powder and salt and whisk till smooth.
Cut red chillies into pieces and add to ladyfingers along with coriander powder. Toss again.
Add roasted besan, mix well and cook for another 2-3 minutes.
Add yogurt mixture. Mix well, lower heat, cover and cook for 10-15 minutes, stirring once a while.