1. cukai taksiran in english will be Assessment.
2. This is a notice regarding an increase in the valuation and hence increase in assessment rates. If you are not agreeable to the said valuation, you will need to write in to oppose the said valuation.
3. Assessment is billed to each individual units. You can pay it online, post office or at MBPJ itself.

Cukai Tanah = Quit Rent = paid for the land, paid to State

Cukai Pintu = Cukai Taksiran = Assessment = paid for the property, paid to Local Authority (MBSA, MPAJ etc)