[4][5] The Mithuna marks the start of the monsoon season on the Indian subcontinent, and is preceded by the solar month of Vrsabha, and followed by the solar month of Karkaṭa.
[2] The Mithuna month is called Ani in the Tamil Hindu calendar.
[1] The ancient and medieval era Sanskrit texts of India vary in their calculations about the duration of Mithuna, just like they do with other months.
For example, the Surya Siddhanta calculates the duration of Mithuna to be 31 days, 15 hours, 28 minutes and 24 seconds.
[5] In contrast, the Arya Siddhanta calculates the duration of the Mithuna month to be 31 days, 14 hours, 34 minutes and 24 seconds.