Name the first month of the national calendar of India based on the Saka Era which was adopted from 22 March 1957 along with the Gregorian calendar for the official purposes.

Correct option is C

The correct answer is (C) Chaitra.

Explanation:
The first month of the national calendar of India, based on the Saka Era, is Chaitra. The Indian government adopted the Saka Calendar as the official civil calendar on 22 March 1957, and it is used alongside the Gregorian calendar for administrative purposes.

Information Booster:

• Saka Calendar: Officially adopted in 1957.
• First Month: Chaitra.
• Significance: Used for government and official purposes along with the Gregorian calendar.
• Started By: King Shalivahana, marking the beginning of the Saka Era in 78 AD.

Additional Information:

• Magha – 11th month of the Saka calendar.
• Vaishakha – 2nd month of the Saka calendar.
• Phalguna – 12th month of the Saka calendar.