Explanation:

Until 6 August 2019, there were officially 29 states in India. But that number now has decreased by one to make 28 states after Jammu & Kashmir was granted the status of a Union Territory with its own legislature. Also. two new Union Territories namely Jammu & Kashmir and Ladakh were created taking the total number of UTs to 9.  After that, the Union Territories of Daman and Diu, Dadra and Nagar Haveli became a single union territory on 26 January, 2020. The merged Union Territory was named as Dadra and Nagar Haveli and Daman and Diu. Therefore, as of 2020 there are 8 Union Territories and 28 states in India. Hence option 4th is correct.