Chaitra Navratri is nine days festivity which starts on the very first day of Hindu Luni-Solar calendar and falls within the month of March or April. Chaitra may be the first month of Hindu lunar calendar and due to it, this Navratri is called Chaitra Navratri. Chaitra Navratri is also referred to as Vasanta Navratri. Rama Navami, the birthday of Lord Rama usually falls around the ninth day during Navratri festivity. Hence Chaitra Navratri is also referred to as Rama Navratri.
All nine days during Navratri focus on nine types of Goddess Shakti. Most customs and rituals adopted during Shardiya Navratri, which falls within the month of September or October, will also be adopted during Chaitra Navratri. Ghatasthapana Puja Vidhi for Shardiya Navratri and Chaitra Navratri is same.
Chaitra Navratri is much more famous northern India. In Maharashtra Chaitra Navratri starts with Gudi Padwa as well as in Andhra Pradesh it starts with Ugadi.