What India has achieved in acquiring, in hardly any time, next-generation weapon systems for future battlefields, hypersonic missile capability, warfare with artificial intelligence, cyber power, quantum computing, and space-based assets has suddenly changed the military-strategic landscape in the subcontinent and added to Indo-Pak rivalry, besides putting structures of nuclear deterrence under severe stress. Anchored in the lenses of offensive realism and security dilemma theories, the paper also examines the drivers of India's military modernization, its linear progression, and the multi-dimensional implications for Pakistan's defense policy and geostrategy. Specific focus is drawn to India's unilateral suspension of the Indus Waters Treaty (IWT). Results add to the growing narrative of the destabilization of strategic stability, intensified arms race kinetics, and environmental exposure, illustrating the need for active diplomacy, legal action, and asymmetric responses to encourage de-escalating trends in a nuclearized part of the world.