You will find both core and non-core opportunities in all departments at IIT Kanpur. Mostly Analytic roles are offered to students of all departments. These roles and packages depend on your own caliber and not on the branch you belong to.
Core roles are also offered to Mechanical Engineering students at IIT Kanpur. These roles are given on the basis of your academic performance and your knowledge base pertaining to the specific branch. But it’s important to know that core roles offered are very fewer in number than non-core jobs.
It’s recommended that you prepare for both. After all, some Analytics roles just evaluate you for your aptitude.