One firm caution for Braj
this is one of India's heaviest bhang (cannabis) belts, and roadside stalls sell bhang thandai and bhang lassi that look and are named almost exactly like the ordinary versions, especially around festival crowds. Do not accept thandai or lassi from unknown temple-side stalls; stick to the established pure-vegetarian sweet-shops and sattvic kitchens named below, which are safe, egg-free and alcohol-free.