Indian Bank — 311 mini balance charge deducted

Address:

Chennai, Tamil Nadu, 600018

Dear sir
I having account with north usman road, chennai branch account no.[protected].
On 31.08.2018 an amount of 311/-deducted for mini charge. It is not fair that large amount (60% of mini balance) deducted for non maintain the minimum balance of rs 500. Please revert back the penalty amount on mercy as it is my salary account where i went apprentice under principal.
Please do me the favour.
Thanking you
Y v sudhakar reddy