Anyway, these are the ones that were recommended by WHO:
Adult diphtheria and tetanus vaccine.
Hepatitis A vaccine.
Hepatitis B vaccine.
Oral polio vaccine (OPV)
Japanese encephalitis vaccine.
any recommendations you would give to make sure I stay in good health while I'm in India?
Tetanus germ lives in soil. I am not absolutely sure, but I think that the association with rust is mistake or a myth.Indeed it is a myth, a false correlation. Any damage to skin allows an entry point for tetanus. Stepping on a shiny new nail is also dangerous, but most nails one might step on are rusted, so one falsely concludes that "rust causes tetanus". Fences are less of a problem, rusted or otherwise, because they are above the soil.
Eat lots of Indian meat preparations, tasty and will improve your morale and therefore your resistance. Washing often is good, though gems can grow on soap. Those small hotel bars are wonderful for use and leave behind at the sink. Bottled water is good although it is refilled and resealed in many countries. Hand sanitizer as long as it contains 60% or more of alcohol, not old bottles lying around which are dilute hand lotion. When you get back chrisakes get your basic vaccinations Tetanus, etc..
There is a recent viral meme about how hot-air hand-dryers collect fecal bacteria and spray it on your hands...