Prepare for unexpected vet bills
January 26 is a very significant day in Indian culture; it marks the day that country officially became a Republic in the 1950's, after a bill was passed that sought to replace India's prior form of government. Every year, a grand parade is held on this national holiday in Rajpath, New Delhi.
If you and your dog are visiting the states of Assam or Sikkim, then you two might be able to participate in the Tihir festival which honors dogs, among other beings and concepts that are sacred in Hindu culture, by giving them garlands and food and by marking their heads with a red powder that symbolizes sanctity.