on guardian and wards act

As per Sec. 9 of the Guardian and Wards Act, 1890 the District Court in India has Jurisdiction to entertain an Application where the minor normally resides. So, the mother has to file an application within the District Courts where the minor normally resides. Still more facts are to be stated by you.

Which country is referred here that is stated to have passed such an order/ judgement / decree ?

What is the provision of law wherein a foriegn court is stated to have invoked jurisdiction over the minor, who is residing in India ? 

Vague question without relevant information can not lead to form an opinion and oblige, therefore, be specific.

ONLY the District Judge where minor is "ordinarily" residing has the jurisdiction to entertain such a petition under the provisions of Guardians & Wards Act, 1890 

It is better and advisable to consult and engage a local prudent lawyer for appreciation of facts/ documents, professional guidance and necessary proceeding if there is some truth in the story.