Decrypted communications between Indian Mujahideen (IM) and al-Qaida and testimony from suspects have triggered alarm among intelligence officials in New Delhi: the groups appear to be working together to launch major attacks in the region.
The officials told Reuters that plots they had uncovered included the kidnapping of foreigners and turning India into a "Syria and Iraq where violence is continuously happening."
Allegiances between Islamist militant groups can be murky and fleeting, and providing concrete proof of operational ties is notoriously difficult.