Fifteen-year-old Tanvi from Kota passed away early Tuesday at AIIMS Delhi during work-up assessments for a possible heart-lung transplant.
Tanvi had visited AIIMS since age two for a complex congenital condition diagnosed as ventricular septal defect with pulmonary atresia.
Her father, Mukesh Pariyani, alleged the family waited over 13 years for corrective heart surgery, but scheduled dates repeatedly lapsed without the operation taking place.