Explanation:

Concept of multiple capitals - The concept of two capital cities is not uncommon: nearly 15 countries across the world have multiple capitals. For instance, Bolivia, Georgia and the Netherlands have two capitals! South Africa has three capitals — Bloemfontein, Cape Town, and Pretoria — that house it’s judicial, legislative and executive branches.
Indian States/UTs With ‘Second’ Capital:

• Maharashtra: The winter session of the state legislature is held in Nagpur. It doesn’t have any legal status as a capital.”
• Himachal Pradesh: As of now, the winter session of the state legislature is held in Dharamshala.
• A Case for shifting India’s capital: With Delhi hit by severe pollution there have been demands to shift capital out of Delhi. Shifting the capital in the south might also help change the perception of the north being favoured.