Around two years ago there was a mango festival held by Dilli Haat, I did plan to go to the festival but was late in arriving and it had ended just a day before. This year I want to make sure that I can attend the festival so want to confirm the dates before hand. I have tried calling Dilli Haat but no one answers so keeping hopes up from the forum.
Apparently the mango festival is held from July 10th till July 11th. I would still advise you to keeping trying to calling Dilli Haat to confirm the dates.
I dont think these dates are correct, because if I remember correctly the mango festival lasted for about 3-4 days.
What a shame I wont be in India during the mango festival, seems like Dilli Haat is a good place to visit, I will have to fit it in in my 35 hour layover in Delhi. Are festivals a regular thing at Dilli Haat?