You can take the defence that wife is Canadian citizen ordinarily resident of Canada and Indian courts would have no jurisdiction as wife has renounced Indian citizenship
2)
In the Supreme Court decision of Bhuwan Mohan Singh v. Meena, (2015) 6 SCC 353, Supreme Court examined the underlying purpose as well as the social context of Section 125 of the Code.
Further, while deciding the matter of maintenance, it is important for the Court to bear in mind that technicalities such as jurisdiction should not impede the object that is sought to be achieved by a provision such as Section 125 CrPC which is essentially social welfare legislation.
The Bench stated that the Principal Judge carefully analysed the material on record before coming to the conclusion that territorial jurisdiction of the Court can be conferred in the case which has been instituted by the respondent/wife.
Adding to the above, Court noted that as per Section 126 CrPC, proceedings under Section 125 CrPC may be instituted against any person in any district where he is, or where he or his wife resides, or where he last resided with his wife, or as the case may be, with the mother of the illegitimate child.