Hello,
there is no need to get a detective in Pune, with these much prove and this ground that she is not living with you you can file a petition for divorce within the local limits of whose ordinary civil jurisdiction:
The Marriage was solemnized, or
The respondent at the time of the presentation of the petition resides, or
The parties to the marriage last resided together, or
In case wife is the petitioner, where she is residing on the date of presentation of the suit, or
The petitioner is residing, in case respondent is out of the territory of which the Act applies or has not been heard for 7 years.
Regards