How many 4G bands are used in India?

Indian telecom operators have received spectrum license to operate 4G LTE networks over BAND 5 LTE FDD (850 Mhz), BAND 3 LTE FDD (1800 Mhz), BAND 40 LTE TDD (2300 Mhz) and BAND 41 LTE TDD (2500 Mhz) .10 Oca 2021