Standard Chartered Bank — interest charged even after repay the credit card outstanding

Address:

Pune, Maharashtra, 411014

My self bharath, i am customer of standard charted bank
I am using manhattan card

My last month (Aug'18) credit card bill amount rs 106, 335.74 (Min due amount : rs 5, 316.79), i paid 83% i. E rs 88, 443 with in the due date and remaining amt paid on 10-sep'18 (Delayed by 9 days)
Card no : [protected]
Bank : standard charted bank

Even after paying the min due and total amount as per the statement they charged me rs 7, 294.60 + gst

If you see my fast history i never delay the payments and i am very good user of sc credit card and using the same card from lat 7yrs

Still this people are charging huge interest amt even after paying the amount

Kindly support to revert extra amount charged in my statement