The correct answer is: D. All of these.
Kangra, Mandi, and Solan are all districts in Himachal Pradesh, India, that have significant coal deposits. In fact, Himachal Pradesh is one of the top coal-producing states in India. The coal deposits in these districts are of high quality and are used to generate electricity and produce steel.
Kangra is the largest district in Himachal Pradesh and is located in the state’s central region. The district is home to a number of coal mines, including the Dehar Nala coal mine, which is one of the largest coal mines in the state. The coal deposits in Kangra are of bituminous quality and are used to generate electricity.
Mandi is a district in Himachal Pradesh that is located in the state’s northern region. The district is home to a number of coal mines, including the Majhgaon coal mine, which is one of the largest coal mines in the state. The coal deposits in Mandi are of bituminous quality and are used to generate electricity and produce steel.
Solan is a district in Himachal Pradesh that is located in the state’s southern region. The district is home to a number of coal mines, including the Nalagarh coal mine, which is one of the largest coal mines in the state. The coal deposits in Solan are of bituminous quality and are used to generate electricity and produce steel.
In conclusion, the correct answer to the question “In which of the following districts coal deposits are maximum?” is D. All of these. Kangra, Mandi, and Solan are all districts in Himachal Pradesh, India, that have significant coal deposits. The coal deposits in these districts are of high quality and are used to generate electricity and produce steel.