Can i take my wife on joining day of Microsoft Hyderabad

Joining day will look a bit odd, as if you're scared about joining the new job, so you've brought your wife along for emotional support on the first day. I would advise not to do that.

Go and join alone on the first day. After a couple of weeks, you can tell your bosses that you're planning invite your wife to see your new office. At that point they will also be happy to meet her when she visits, and it looks much more graceful socially, and you don't come across as being scared or insecure.

I'm curious. Why? Look around the campus?

On start date you can't. After some days you raise a guest pass.