Which would be the front of corner plot?

Hello,

I have a plot 17 marla, corner in a row of 10 marla plots. 10 marla plots are 45front x 50depth on 30 feet road. the one i have is 80front (on 30 feet road) x 50 depth on 40 feet road.

I want to know where will be front according to laws of LDA. plot is in OPF.