Nomenclature for unsaturated Oraganic compounds

Iowest Locant rule definately applied (if you consider or not)

Lowest sum rule apply tab hota hai jab main chain ki branching no dono side se same aaye yha jesi hi 1 side double bond dekha start numbering from that side

As per priority we consider multiple bond first in this question so We have to take lowest Locant rule

Identify longest chain SO longest chain is 6 carbon chain There is dobule bond in the chain give priority to dobule bond So 4-Bromo 5-chloro 6-methyl hept 2ene