Telangana Southern Power Distribution Company [TSSPDCL] — electricity bill for the month march

Hi, i was billed for the mount of 1660/- for the month of march which was much higher than my usual usage and also i am not there in my house due the current situation. Last month it was just 750/- even if you are considering same month, last year then it should be 1574/-. But the bill was much higher when compared to last month or same month last year.
Could someone please provide how this 1660/- was billed?

My usc number is[protected]