Neowise or Comet C/2020 F3 is going to visible in India from July 14 and we see the comet for next 20 days. This comet is visible after Sunset and you can the comet with tail for 20 Minutes.
This Comet is 5 km wide and moving towards the Sun . Comets are rock which usually comes from edge of Solar System. These comets are covered with lots of ice and when it is moving towards the Sun, ice on comet melts and leads to formation of the Comet Tail.
This will be visible on Northwestern Sky. You need to be away from city or town to see this Comet.