If you have family members who are dependent on your income, you must buy a life cover (a term-life protection plan at the least) to secure their future in your absence. Life insurance provides financial protection against several risks:
a) That of dying too soon leaving a dependent family without any means of regular income.
b) That of living till old age without feasible means of financial support.
c) That of burdening your dependents to pay off loans and other expenses during your absence.
Moreover, the death benefits received by the family are exempted from tax U/S10(10D), and you can avail deduction for the premium paid U/S 80C.