Alright, so with a JEE Main 2025 All India Rank of 6,068 in the ST category and your interest in B.Tech in CSE with AI & Data Science, you’re actually in a pretty solid position, especially if you're looking at colleges in West Bengal.

First off, IIIT Kalyani should definitely be on your radar. It’s one of the top technical institutes in the state and takes JEE Main scores through JoSAA counselling. For ST category, the cutoff for CSE usually goes somewhere around 7,000 to 8,000 in AIR, and since your rank is 6,068, you fall nicely within that range. If they have specializations like AI or Data Science as part of the core or elective structure, you're in a good place to grab one of those seats.

Now if you’re looking beyond the centrally funded institutes, Haldia Institute of Technology is also a decent option. They offer specializations like AI and ML, and in recent years the closing ranks for such branches have gone pretty high; way beyond your rank, so you’re definitely in the safe zone there too. Same goes for options like IEM Kolkata, Techno India, and even Government College of Engineering and Ceramic Technology if you're open to broader CSE or IT streams where AI related electives can be chosen later.

Basically, you're well positioned to secure a good seat. Keep your preferences sharp during counselling, especially in JoSAA and maybe WBJEE if you're considering state counselling too. Hope for the best!