Submit your application with Min. of labour with the following:
* Application duly signed by you, your sponsor
* Yours as well as your wife's Passport, RP & ID copy
* Passport copy of your baby
* Other documents such as Marriage certificate, etc.

Your visa should be approved within 2-3 working days, which is subject to approval.

If the baby is <90 days from the date of birth, then you get a residence visa in the airport itself.

For more details, write to me.