How to sort date?

i have array Like :

<__NSArrayM 0x79f3a4a0>(
{
    "act_date" = "02/03/2015";
    "act_id" = 3;
    "act_name" = test2;
},
{
    "act_date" = "03/03/2015";
    "act_id" = 4;
    "act_name" = test3;
},
{
    "act_date" = "01/03/2015";
    "act_id" = 5;
    "act_name" = test1;
}
)

i want to sort array with date. i tried this method :

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MM/dd/yyyy"];
NSMutableArray *tempArray = [NSMutableArray array];

for (NSString *dateString in tblList)
{
    NSDate *date = [formatter dateFromString:[dateString valueForKey:@"act_date"]];
    [tempArray addObject:date];
}

   [tempArray sortUsingComparator:^NSComparisonResult(NSDate *date1, NSDate *date2) {
        // return date2 compare date1 for descending. Or reverse the call for ascending.
        return [date2 compare:date1];
    }];

But it returns only array with date, how do I add my all data with sorted date array??