public string Save(Deposit deposit)
        {
            int rowAffect = depositGateway.Save(deposit);
            int affect    = accountGateway.UpdateBalByAcNo(deposit.Ammount, deposit.AccountId);

            if (rowAffect != 0 && affect != 0)
            {
                return("Successful");
            }

            else
            {
                return("Failed");
            }
        }