Pakistani style vegetable biryani

I tried this out for Nishanth's birthday and it came out good.

http://www.angelfire.com/country/fauziaspakistan/vegetablebiryani.html

There were some things that i didnt follow such as not remove the pressure cooker after 2 whistles and the rice turned a little soft and make sure you remove the pressure cooker after 2 whistles! Also, if using cauliflower use big florets otherwise they will disappear in the biryani! It tastes good though!