KDMC — Property taxes

Address:

Shivaji chowk Kalyan west

Dear Sir/Madam,

Today I have visited in KDMC office at Shivaji chowk Kalyan west for paying my outstanding Property tax which I don't know so asking the staff about the same
He had provided me tax Amount which is Total Amount was 92k.Approx i had fully shocked because property value still 5Lakh from since 2012 to 2022 No growth in 10 year I had paid property tax in 2013-14 the amount was Rs.5136 something
In 8 year 92k including penalty when I talked about the
Byfercation then staff said Every month charged 2% on principal which is two much
RBI never provided any interest above 8% then why they charged 24% why we pay higher penalty, it is your duty to remind me to pay property tax in SMS or email or call ?? Which they not doing ??

I want proper justification about property taxes ????