The Indians have had enough of Somali pirate hubris. After having a ship almost hijacked last week (among a slough of others), the INS Tabar, confronted a pirate "mothership," and told the men on board that the ship was going to be searched. Now if you've ever seen Waterworld, think of the undead Exxon Valdez, but all the crew have RPGs.
When the Indians tell these guys they're going to be searched, they start firing their RPGs and light arms. Now I don't know if you've ever seen a missile frigate, but if you did, I bet you would know better than trying to scare it off with light arms. They're not only armed to the teeth with surface-to-surface missiles, but have a bow and stern cannons and heavy machine guns bristling from all corners.
The Tabar was pleased to have an excuse to open fire. The details are few, but it likely tossed off a few SS missiles and hit a few weapons caches, and the "mothership" went down. A few speedboats ran off, but they likely lost their supplies and leadership.
Of course, there are many pirate factions in Somalia. The Mogadishu government is mostly... nonexistent. The Indians, Russians, Americans, Brits, and Saudis will have to start policing the waters themselves, and continue this kind of anti-pirate offensive--if they do, Somali thieves may decide the occasional oil tanker isn't worth the risk of taking SS missiles in the face.