The growing strategic importance of Andaman and Nicobar Islands is now changing the dynamics of Indian ocean and maritime politics. The sea politics is now has been more tangled than before. Viewed under the theory of offensive realism proposed by John Mearsheimer that holds the concept of power maximization of states and balancing strategies to counter their rival states as all states have some offensive capabilities and countries can never be certain about the intentions of other states. The ultimate goal is to dominate. Within that context, the study aims to examine the growing strategic importance of Andaman and Nicobar Islands and its future prospects and implications on Pakistan. This paper analyzes the main indicators that India is presently working on, to develop its Tri-service theatre. The study seeks to answer the following questions a) How Andaman and Nicobar Islands are strategically important for India? b) How will the development of the two islands will change the dynamics of maritime politics and tackle increasing Chinese presence in Indian ocean? c) What will be the future implications or Pakistan? The study argues that the ANC is the significant factor for India to aggravate its control in the Indian Ocean region as it is developing its largest military and nuclear build-up. However, it can unleash negative imprints for Pakistan in future in certain aspects.