Hello,
An application for custody of the child under the Guardianship and wards act can only be filed at a place where the ward is residing, so in your case it has to be filed at kashipur.
The petition under section 9 of the Act can be presented at various courts as per section 19 of the act, which reads as follow:
19 Court to which petition shall be presented. Every petition under this Act shall be presented to the district court within the local limits of whose ordinary original civil jurisdiction
(i) the marriage was solemnised, or
(ii) the respondent, at the time of the presentation of the petition, resides, or
(iii) the parties to the marriage last resided together, or
[(iiia) in case the wife is the petitioner, where she is residing on the date of presentation of the petition, or]
(iv) the petitioner is residing at the time of the presentation of the petition, in a case where the respondent is, at that time, residing outside the territories to which this Act extends, or has not been heard of as being alive for a period of seven years or more by those persons who would naturally have heard of him if he were alive.]
Maintenance case you will have to fight at the place here it has been filed.
Regards