IDBI Bank — Lean amount

Hi,
I am Suresh from Anantapur, AP.
Customer id is 72328098

My amount Rs: 1, 50, 000/- gone in lean, after enquiry the Manager told it's cyber related issue. After requesting several times, provided details after 20 days & some numbers, that contact numbers not responding my calls & messages. Here in the branch not co-operating. Please suggest me, how can I proceed ?
I consulted Advocate & other bank managers, they are suggested to me, 1st go through higher officer's in the bank, if not solve the issue, move legally. Please let me know how should I proceed.

Thanks & Regards
Suresh.