Canara Bank — wrong debit of expenses from my account

Address:

AJAY IMPEX, C-66,67 FOCAL POINT, Faridkot, Punjab, 151204

Sir,
Have my account in kotkapura branch (2104 branch code).. I am guarantor in my wifes firm. I am proprietor in my firm ajay impex. On 30th of march without my knowledge my account was debited by rs826000 and the amount was transferred to my that company. And when contacted with the branch they replied in abrupt manner.. Kinly guide me what to be done.. Should i be going to consumer court for this after being associated with this bank for last fifteen years..