The Hill Times reported this month that the chief human resources officer of the House of Commons is investigating accusations of sexual harassment against Kang made by a young female staffer in his constituency office.
The NDP is calling on Prime Minister Justin Trudeau to "immediately remove" Darshan Kang from the Liberal caucus.
None of these claims has been proven.
Charles-Eric Lepine, spokesman for government whip Pablo Rodriguez, said in an email Monday that when the government became aware of the allegations it referred them to the House of Commons' chief human resources officer.
"Walk the talk on standing up for women and on feminism", Malcolmson said of Trudeau.
"One of the messages that Trudeau could have sent by treating this case the way that he has other allegations in the past would be to really let that Liberal staffer know that the party and the prime minister has her back", she said. Kang remains a member of the Liberal caucus. The newspaper quoted the young staffer's father, who alleged that Kang engaged in behaviour ranging from "unwelcome hugs" and hand-holding to offering the woman wine and pulling on her jacket to try to get her to take it off.
When asked if he was going to kick Kang out of caucus, the prime minister said Parliament has put in place formal processes to deal with allegations of misconduct or harassment that did not exist before.
Prior to the 2015 election, then-Liberal leader Justin Trudeau expelled two MPs from caucus amid allegations of sexual misconduct by two unidentified NDP MPs. The Ottawa-based publication said an external investigator was hired to look into the allegations and recently submitted a report on the matter.
"While I can not comment directly on an open, ongoing investigation, I continue to proclaim my innocence and will defend my reputation at all costs", said Kang.
HuffPost Canada has reached out to Kang's office for comment.
Heather Bradley, director of communications for the office of the Speaker of the House of Commons, said chief human resources officer Pierre Parent can not comment on human resources files, citing confidentiality rules in the House's harassment policy.
"He will not confirm or deny if an investigation is under way", Ms. Bradley said in an e-mail.
The harassment policy requires the House to publicly disclose how often it is used.
"We are allowing that process to undergo in a responsible way", he told reporters. Mr. Kang was elected federally in 2015; before that, he served as a Liberal member of the Legislative Assembly of Alberta.