Dr Brajpal Singh Tyagi of Ghaziabad, UP completed 55 ear drum operations (endoscopic cartilage tympanoplasty) in 17 hr 23 min from 8.27 am on April 7 to 1.50 am on April 8, 2015 at Harsh Poly Clinics (a unit of ABR Health Care Solutions Pvt Ltd) on World Health Day (April 7, 2015).