Rat bites are generally considered very low risk for rabies. Rodents like rats rarely transmit rabies to humans, and in India, ARV is not routinely recommended for rat bites. That said, do wash the wound well with soap and water immediately, and make sure your tetanus vaccination is up to date. Watch the wound for signs of infection like redness or swelling.
Next Steps
Feel free to consult me on Practo for proper guidance.