Which of the following sectors are currently included in the calculation of the Index of Industrial Production (IIP) in India?
1. Mining and quarrying
2. Electricity generation
3. Construction activities
4. Forestry-related operations
Select the correct answer using the code given below:
1
1 and 2 only
2
2 and 3 only
3
1, 2 and 3 only
4
All of the above