Can someone tell me what is written on the bill?

So I installed a solar system on 6th December and it was turned on on 6th. Why does the bill imply that I'm paying for 12 days? I don't get it. Annoyingly the KSEB meter guy comes in reads the meter and runs away without even ringing the bell. I found it under a leaf in my back yard hence why it's so dirty. And I don't know how to properly read Malayalam so if someone could tell me what this bill is saying I'd be grateful