All three of the Royal Enfield 350s you have shortlisted will serve you well, but each has a different character. The Hunter 350 is the lightest and most affordable one and will be the most agile in the city, where you spend most of your time. The Bullet is a retro roadster with a commanding riding position that is going to feel quite a big larger. This will be the most comfortable bike owing to its neutral ergonomics and great suspension. The Meteor 350, with its laid-back rider triangle, will feel the most relaxed to sit on. But all your weight will be on your tailbone, which won’t be ideal when tackling road imperfections.
Of the three, the Hunter makes the most sense for your usage, but a test ride of all three will help clear the picture for you.