Re: Namaz Hajat and Tahajad
namaz -e- tahajjud and namaz-e- hajat, both are nafal namaz.
you can read nafal of hajat after any fard namz, while tahajuud can only be read during isha and before fajar. I usually read it before fajar. You only need to make intention of your salah and when you are done. you can read duroo and your duwa/hajat/wahtever the problem and then again drood.