Doraemon: Castle of the Undersea Devil has crossed Rs 12 crore at the Indian box office after six days, with a strong opening that’s now tapering. The anime film earned Rs 1.25 crore on Day 6 — a 30% dip from the previous day, and is on track to close its first week around Rs 14 crore. That puts it ahead of every other entry in the franchise, making it the biggest grosser yet in the Doraemon series. The film follows Nobita and friends as they dive into the depths using Doraemon’s gadgets, stumble upon the lost Mu Federation, and face off against Poseidon. An ancient AI from Atlantis with plans to destroy Earth. Their mission? Stop the weapon before it triggers global catastrophe. The story unfolds across the Bermuda Triangle, blending adventure, sci-fi, and the kind of high-stakes gadgetry fans expect. With momentum still holding, the real question isn’t whether it’ll make money, it already has. But how far it can stretch beyond the weekend. The next few days will tell if this undersea tale becomes a cult hit or just another solid run for a beloved franchise. And if it does, the District Line might finally get its due.