If validity of the term insurance is your concern, do not worry as the policy though issued in India is valid world over in case of any eventualities to you, while you are staying in Muscat. However, the claim would be paid in Indian rupees only to your nominees who may or may not be residing in India. They will need to go through the routine claim settlement process as prescribed by your insurer. As term insurance is a fixed benefit policy, if you plan to increase your life cover when residing in Muscat or once you are back in India, you should do so by mentioning the details of your existing life insurance cover. The policy could be bought in both the countries, subject to the insurer selling it to you.