Yes, IPV can be given now. Your baby is born after April 2016, when the switch to Bivalent Oral Polio drops was already made. One dose of IPV should be essentially given, otherwise your baby will be vulnerable against type 2 polio without any immunity against type 2 poliovirus.
Please let me know if your baby has been given earlier doses of IPV at 6 and 10 weeks or OPV drops were only given for the primary doses? Otherwise see all the scenarios and find your baby’s best fit according to vaccination history.
1. If OPV drops were given for all the 3 primary doses, baby can receive only 1 IPV dose as early as possible when the vaccine is available
2. If OPV primary doses are also not given, 2 doses of IPV should be given at 2 months gap followed by a booster dose at 6 month gap after the previous dose to provide complete immunity
3. 2 IPV doses at 8 and 16 weeks is routinely given, followed by a booster dose at 12-18 months