Hi, RajaSarma ...
Are you still interested with address dropdown menu? You can looks my system running well in abantecart 1.2.0 and 1.2.1. Customer just select country - zone - city - ditric -subdistric when they filling in the address field. Postcode/zip automatically appear when subdistric selected.
The system running well too with shipping extensions distric base.
sorry I am not influence in English
Are you still interested with address dropdown menu? You can looks my system running well in abantecart 1.2.0 and 1.2.1. Customer just select country - zone - city - ditric -subdistric when they filling in the address field. Postcode/zip automatically appear when subdistric selected.
The system running well too with shipping extensions distric base.
sorry I am not influence in English