Hi Naveen Amin,
There is nothing called "impotent".
Do not call yourselves as "impotent".
Do not call anyone as "impotent".
You are not "impotent".
You are just not interested in s*x.
That is not a crime.
Most men will be potent with the women they like and love.
If a man does not like a woman, he will not have s*x with her.
If a woman behaves badly or manly, her husband will not want to have s*x with her.
That does not mean, he is impotent.
There may be people who may need little medical help to be potent.
That is like any other medical condition that requires medications.
So, PLEASE DO NOT CALL ANYONE AS IMPOTENT.
These lawmakers added one ugly ground for divorce as "impotency".
Many women and her lawyers misuse this to get divorce and huge alimony by humiliating that man.
A woman who was forced in a marriage is misusing this law.
A woman who has extramarital affairs is misusing this law.
A woman who wanted to teach her father a lesson, does like this and then she marries her lover.
So, it is very good that you are being careful here.
My suggestion would be that you should not marry your girl friend even if you have 1% doubt.
Because, many women use this law to marry, loot money from a men and fly away.
Some men get broken because of this.
But many men go forward, marry another woman, have children and lead happy life.
But there are woman who does not want to have their own child for many reasons.
Read about this woman : http://marry.indhuja.com/
If your girl friend is of this type of woman, you can marry her.
Else stay as friends.
Find out a woman like Indhuja and marry her.
Getting into ugly legal issues after marriage is worse than staying single.