Even if you already have a career, learning Tally and gaining a certificate will increase your chances of getting promoted or landing a better position. Tally will offer your profession a much-needed boost by improving your accounting, inventory management, and taxation skills.
It is only used by low-level accounts clerks and has no connection to banking. As an engineer, you are eligible to take the Bank PO exam. As an engineer, you are not required to take any courses.