The correct answer is option 2 - Telegram.

India Post, which is the official postal service of India, has discontinued the service of sending telegrams permanently. A telegram is a message that is transmitted electronically over long distances using a telegraph system. However, with the advancement of technology and the rise of mobile phones and the internet, the demand for telegrams drastically reduced.

Option 1 - Money Order: Money Order is a service provided by India Post that allows individuals to send money to a recipient through the postal service. This service is still active and operational.

Option 3 - Postal Life Insurance: Postal Life Insurance is an insurance scheme offered by India Post. It provides life insurance coverage to government employees, including postal employees. This service is still available and has not been discontinued.

Option 4 - Inland Letter: Inland Letter is a type of envelope used for sending letters within the country. As of now, this service is still available and has not been permanently discontinued.

Therefore, the correct answer is option 2, Telegram, as it is the only service that India Post has permanently discontinued.