Can a parent challenge a child custody decision after divorce in India? For example, if a mother is granted custody after divorce, can the father seek a change in custody through another court?

Yes, a parent can challenge a child custody decision in India after a divorce. The father, in this case, can file a petition for change in custody under Section 25 of the Hindu Marriage Act or Section 13 of the Guardians and Wards Act, proving a significant change in circumstances justifying the change.