Property right of a foregin national

my grabdfather died(nana) was a citizen of india.he has two brothers and one daughter.one brother died after my anas death.now my grandmother got the property and she is also the citizen od canada and also were the two brothers , but my mother is a citizen of india .so will the disputes be setteled ny indian law or canadian law.the property was ancestral given to my grandfather(nana) by his father