Boroi season is in full swing here in Dhaka. Kids are having a blast, with the vendors posted strategically outside school gates. I have tried at least four varieties, though I am sure there are many more. Prices are high. If you buy from the posh side of town, you can pay a ridiculous Tk 100/kg for the premium Oval and Aapel Borois. In other places, the minimum is still a high Tk 60/kg.
That said, the Borois I tried were absolutely delicious. The Aapel (Apple) Boroi was the sweetest, but the oval one was the best overall because of its extra crunchy texture. And the round deshi boroi had great flavor with just a little tartness.
Here are some pictures.
Incidentally, I tried a Boroi off of a tree in Ayutthaya, Thailand, recently and it tasted just like our Deshi Borois.