"No apology should be accepted in such a case. The leader of the party should throw him out of the party. He doesn't deserve to be an elected representative any more," Singh told reporters here on the sidelines of an interactive session organised by the MCC Chamber of Commerce and Industry.
"He is a mentally sick person as he treats women as an object of physical gratification. I am saying this as a father of two daughters," Singh said.
The former Samajwadi party general secretary claimed that if Trinamool Congress supremo and West Bengal Chief Minister Mamata Banerjee did not act against Pal she would face the consequences and lose support.
He came out in support of the Narendra Modi government saying that he has set an example of good governance by asking the rich to give up subsidy on LPG cylinders.
"Subsidies are meant for lower and lower middle class families and not for the rich. So this is good governance," Singh said, while also supporting the hike in rail fares.