Violent crime is rare, but still do be careful in the lanes after dark. Carry a torch, as power outages are extremely common, and the alleys are hard enough to navigate in daylight, let alone in pitch dark, because of their broken paving stones and cows common.
Women especially need to dress conservatively and to be careful. Even taking precautions, expect to have the odd local young man try to quickly grope you and run away. Respond aggressively and loudly to try to discourage this behavior as much as possible.
cope
Knowing some basic Hindi and/or Urdu will help, although you can manage with English.
Be prepared to haggle with cyclerickshaw pullers the best means of transport