Technically speaking 2 months is too tight a situation to get baby visa. To start with you need to register the birth and obtain birth certificate form authorities, this can take at-least 3-4 weeks. Then you have to apply for passport, its better to apply under Tatkal scheme(even in that case it takes upto 7-10 days). Once you have baby's passport you can apply for visitor's visa, which normally takes 2-3 weeks depending on workload and where you live. Can I ask when is your baby due? and when is last entry date?