SBI — Automatic Money Deduction from my account

Without any prior notice Rs 23000/- has been deducted from my SBI Salaried account, Message that I got in my registered mobile number is as follows : "Your AC XXXXX896128 Debited INR 23, 000.00 on 14/08/15 - SWEEP TFR DR. Avl Bal INR xxxx." I requested you to credit of above amount to me and hope no such transaction occur without my permission. Thank you. Please ensure I get them back immediately.