National Saving Certificate (NSC) is a government-backed savings scheme offered through post offices in India. NSCs can be purchased by individuals, jointly by two adults, or on behalf of a minor. Key benefits include tax deductions, loans against the certificate, and a fixed interest rate for the tenure. NSCs are available in denominations from Rs. 100 to Rs. 10,000 and interest compounds annually at the rate set at purchase for 5 years. Matured certificates continue to earn interest for up to two years if not redeemed.