Bank Of Maharashtra — debited amount from my bank account

Address: Pune, Maharashtra, 411036

From 6/10/2019, my account was was debited for two to three times of ₹ 354/- without my permission every month.
I have not done those transactions but received sms regarding transactions. Kindly look into the matter and refund my hard earned money as soon as possible otherwise i will file a complaint against bank of maharashtra in rbi and will go to court and demand for compensation.
Thankyou