public bool isLedgerExists(int AirlineId)
        {
            var aa = Airlines.Where(x => x.AirlineId == AirlineId).FirstOrDefault();

            if (aa.SettlmentLedgerId == null)
            {
                return(false);
            }
            else
            {
                if (ent.GL_Ledgers.Where(x => x.Id == AirlineId && x.AccTypeId == 1).ToList().Count == 0)
                {
                    return(false);
                }
                else
                {
                    return(true);
                }
            }
        }