Niva Bupa's Reassure 2.0 is a new health insurance plan that offers some unique features that make it an excellent option for people below 50 years of age. One of the most attractive features of this plan is that the premium is based on the entry age, and it remains the same until the policyholder makes a claim. This means that a young and healthy person can buy this plan and pay the same premium for many years until he/she makes a claim.