Not sure about a dismil since that is a word I have never come across beofre.However, a decimal, as a measure of area is 435.6 sq ft.
1 bigha=20 KATHA
18 katha is equivalent to 1 acre.
1 katha = approx 267.6 sq metres.
Well, honey, a "katha" is a unit of area used in India, particularly in the region of Bihar. One katha is equal to about 1361.25 square feet or 126.32 square meters. As for decimals, well, a katha is a whole number unit, so you won't be dealing with any pesky decimals here. Just good old-fashioned square footage!
100 dismil
Dismil is a unit of measuring land in Orissa, Bihar district in India 1 dismil = approx 435 sqft 100 dismil = 1 acre
18 katha
Here we go....... 1 Bigha = 20 katha = 33 decimal 1 katha = 1.65 decimal
1 katha=66.9 sq. metres 1 katha=720 sft
1 katha = 16 chatak
1 Katha = 720 square feet 10 Katha = 720*10=7200 square feet. baja247.com
Around 2000 sq ft
720 sq.ft.
250
1440 Sq. Ft
1360