Ashu,
If BOTH of you are foreign citizens and you have been living abroad for a long time, you are FREE from all kinds of civil and criminal laws of India. The Indian Penal Code (read Section 2 or 3, or somewhere at the very start) specifically states that the crime must be committed in some part of India. This opens a Pandora's box... If she claimed that you did something to her while the two of you were in India (e.g. dowry demand) then the jurisdiction of Indian Courts kick in because the crime was committed in some part of India (nationality does not matter). Therefore, it is important to read the pleadings before advising you. Section 125 of Cr.P.C. does not involve the commission of a crime so should not be applicable (or so I think). If there is a conflict between Section 2 and Section 125 Cr.P.C., Section 2 should override because it is a general explanation applicable to all other sections.
That said, I am a foreign national too but not an advocate. So my opinion should be interpreted accordingly.
Get divorced, stay single, enjoy life.... Marriage is too much of a hassle these days...If something happens along the way and some romantic sparks start flying, OK... but not otherwise. Good Luck!