Here AllBirthCertificateNumbers is an array and remove that element that has a similar BabyBirthId let value = this.AllBirthCertificateNumbers.find(a => a.BabyBirthDetailsId == this.BirthDetail.BabyBirthDetailsId); if (value) { let valueIndex = this.AllBirthCertificateNumbers.indexOf(value); this.AllBirthCertificateNumbers.splice(valueIndex, 1);