The new tax slabs are based upon the prevailing guidance value.
https://www.google.com/amp/s/www.deccanherald.com/amp/story/india%252Fkarnataka%252Fbengaluru%252Fbda-revises-penalty-for-vacant-sites-3908043
https://www.google.com/amp/s/www.deccanherald.com/amp/story/india%252Fkarnataka%252Fbengaluru%252Fbda-revises-penalty-for-vacant-sites-3908043