Pakistan is casting its gaze back toward the Bay of Bengal, a move that holds real consequences for India. The last time Pakistan sought influence there, during the 1971 Indo-Pak war and Bangladesh’s fight for liberation, the outcome was disastrous for them. When Indian naval forces sank the PNS Ghazi, Pakistan’s only formidable submarine in the region, their navy all but vanished from those waters, licking its wounds for decades.

Now, the situation has started shifting. A senior officer in the Pakistan Navy recently made it clear: Pakistan wants a presence in the Bay of Bengal again. This isn’t a nostalgia trip—this time, they’re backed by cutting-edge Chinese submarines and the changing political climate in Bangladesh.

Pakistan’s Renewed Maritime Ambition

Let’s look at the catalyst: the new Hangor-class submarines from China. Pakistan’s navy made a deal for eight of these advanced vessels, and the first one just arrived. During the delivery ceremony, Commodore Omar Farooq of the Pakistan Navy, on a stopover in Sri Lanka, didn’t mince words. He said, “With these Hangor-class submarines, our reach now extends beyond the Arabian Sea into the Bay of Bengal. This is a game-changer.” The confidence in his statement marks a real strategic turning point for Pakistan’s navy.

What makes these submarines so special? Designed and built in China, the Hangor-class is equipped with Air-Independent Propulsion (AIP) technology. Traditional diesel-electric subs need to surface often to recharge their batteries. AIP changes the game: submarines can remain submerged for extended periods, making them much harder to track or detect. This stealth advantage isn’t just technical—it tilts the operational dynamics of regional naval activity, giving Pakistan a cloak it never had before.

Geopolitical Enabler: A Shifting Bangladesh

Still, even with advanced technology, you can’t project power thousands of miles from home without local support. Here’s where things get interesting: the shifting politics in Bangladesh. The sudden collapse of Sheikh Hasina's government in late 2024 broke the ice between Bangladesh and Pakistan, whose relations have been deeply frozen for decades. Suddenly, you’re seeing direct flights between the two countries return, maritime trade routes reestablished between Karachi and Chittagong, even warships like the PNS Saif docking at Chittagong for days at a time. Pakistan is securing warm relations—and likely logistical support—on India’s eastern flank, something that hasn’t happened since 1971.

The Strategic Friction for India

For India, this isn’t just a matter of pride. The Bay of Bengal is a strategic core. It hosts India’s Eastern Naval Command, Visakhapatnam is the cradle of India’s nuclear submarine program, and the secretive INS Varsha base is home to the nation’s most sensitive undersea assets. The Bay is a key artery for international shipping and energy flows. Legally, the seas beyond each country’s 200-nautical-mile Exclusive Economic Zone are open waters—any navy can pass through. But India has been used to dominating this space, without real competition, for over five decades.

Does Pakistan’s new move upend the naval balance? Not in any decisive way. India’s navy is a heavy hitter in the Indian Ocean, flying its own flag on aircraft carriers, fielding nuclear-powered submarines, and fielding a well-developed indigenous defense industry. Pakistan, by contrast, depends entirely on imported platforms from China and Turkey. The Hangor-class subs, sophisticated as they are, won’t flip the balance of power.

But they do force a shift. Pakistan can now pose a constant “tactical nuisance,” as defense analysts put it. India will need to commit more ships, satellites, and anti-submarine assets just to monitor these new arrivals in its backyard. That means more time, money, and attention drawn to a theater where India used to operate almost uncontested. While Pakistan’s strategy might not tip the scales, it does stoke a simmering tension and nudges the regional rivalry into a new era—one defined by technology, shifting alliances, and a fight for access in contested waters.