The Canadian prime minster’s accusation of Indian government involvement in the killing of a Sikh nationalist signifies a sharp escalation in diplomatic tensions between India and Canada.

The former Union minister on Friday pushed for his private member bill on this issue to be passed by Parliament.

Congress MP Manish Tewari has said intelligence agencies should be put under the parliamentary oversight, arguing if his suggestions were accepted in the past, the country would not have been in an "embarrassing position" as it is now.