I have been trying to achieve the below requirement. I could able to get it working.

But want to make sure if i am doing in a right way ?

1. We have a table with customised Cell. [ say: firstViewController]

2. Customised Cell has a button , click event in this button, carries row index value to another view controller, and in this view controller i will use this row index to access data model from First view controller.

Annotation: Each row has values associated with unique Dictionary value in Array based on row Index.

Pseudo Code:[ pasted only necessary code ]

FirstViewController.h

 @interface firstViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>


 @property NSMutableArray *MasterRecords;   //  Each element in Array is dictionary. 
 @property (weak, nonatomic) IBOutlet UITableView *tblMasterTable;
 @end

FirstViewController.m

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    
    static NSString *columnIdfer = @"items";
    StudentCell *cell = (StudentCell *)[tableView dequeueReusableCellWithIdentifier:columnIdfer];
    if ( cell == nil)
    {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"StudentCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }
    

    if (indexPath.row < [self.MasterRecords count])
    {

        cell.iRecordIndex = indexPath.row;
    }
    
    
    return cell;
    
}

In the above code I set the iRecordIndex to IndexPath.row

StudentCell.h

@interface StudentCell : UITableViewCell
@property NSInteger iRecordIndex;
@property (weak, nonatomic) IBOutlet UIButton *btnSubmit;  // It pushes viewController.
@end

StudentCell.m

- (IBAction)btnSubmitPressed:(id)sender {
  
     NextViewController *sVC = [[NextViewController alloc]     initWithRecIndex:@"NextViewController" bundle:nil Index:self.iRecordIndex];

  // Pushing NextViewController to NavigationViewController.
}

NextViewController.h

@interface NextViewController : UIViewController <MKMapViewDelegate>
- (id)initWithRecIndex:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil  Index:(NSInteger )iRecIndex;
@property NSInteger iRecordIndex;
@end

NextViewController.m

 - (id)initWithRecIndex:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil  Index:(NSInteger )iRecIndex
{
      self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        self.iRecordIndex = iRecIndex;
    }

    return self;
}





-(void) viewWillAppear:(BOOL)animated
{
    //Get FistViewController.   say  ==> fvc.

    NSMutableArray *mRec = [fvc MasterRecords];
    NSMutableDictionary *mDict = [mRec objectAtIndex:self.iRecordIndex];
    
    NSLog (@" value1 is %@ ", [mDict valueForKey:@"value1"]);
    NSLog (@" value2 is %@ ", [mDict valueForKey:@"value2"]);
    
   // Using value1, and value2 to display MKMapView.


    
}

I am afraid if it is a right approach?. or where i could improve it?