How to remove white ants from the House ?

"White ants" is an old name for termites. With these well-organised pests, it isn't the ones you see that matter but the ones you don''t see. Most of the time they stay well hidden from view happily eating out your timber. While there are a number of DIY products around, nothing beats getting a skilled professional to inspect and advise. What you do depends entirely upon the type of termite. There are several different types, suited to different control measures. Your enemy is the whole colony not just the ones you can find. So, then get an inspection, consider the advice and decide whether you need fumigation, baiting, dusting or sprays.

With difficulty, you need a pest control professional. And you should take it seriously (if you mean what I think you mean by white ants) - they'll eat the wooden supports of the house and make it fall down.

I've never heard of these so called "white ants"

Ghost ants are partly white. Or you might have termites.

If they are ants, some Liquid Terro and Combat bait will attract them and they will take the bait to the other ants and that will kill them.

http://www.en.wikipedia.org/wiki/termites

Noke spray