GT S-7562 rom install option not coming

[roshanbalsaraf]

Sir, m having gt s7562 model,I have rooted my mobile &* trying to install custom ROM for first time,but in recovery mode i am not getting install from zip option.I am taking only following options 1.Reboot system now 2.apply update from external storage 3.wipe data/factory reset 4.wipe cache partition 5.apply update from cache. please instruct how can i install custom ROM.

 

[RichieXX]

You must flash first a custom recovery to install a custom ROM.