The presence of Jaswal Atwal, a convicted pro-Khalistan terrorist, at an official event hosted for Canadian Prime Minister Justin Trudeau, has prompted the Indian government to also make inquiries to figure how the separatist leader was allowed back into the country without any red-flags being raised."We will have to see how this happened," Raveesh Kumar, the foreign ministry spokesman said on Thursday."I cannot immediately say how that happened. There are different ways of people coming into India, whether you are an Indian national, or OCI (Overseas Citizen of India) card holder. We are ascertaining details from our mission," Mr Kumar said.