Passports Act 1967
Section 20 :
Issue of passports and travel documents to persons who are not citizens of India :
Notwithstanding anything contained in the foregoing provisions relating to issue of a passport or travel document, the Central Government may issue, or cause to be issued, a passport or travel document to a person who is not a citizen of India if that Government is of the opinion that it is necessary so to do in the public interest.