Telangana’s irrigation potential is primarily derived from:

Rainfall harvesting is a small-scale method of collecting rainwater for irrigation. It is not a significant source of irrigation in Telangana.

Here is a brief explanation of each option:

• Surface water is water that flows on the surface of the Earth, such as in rivers, lakes, and streams. It is the primary source of irrigation in Telangana.
• Groundwater is water that is stored underground in aquifers. It is a significant source of irrigation in Telangana, but it is becoming increasingly scarce due to overexploitation.
• Rainfall harvesting is a small-scale method of collecting rainwater for irrigation. It is not a significant source of irrigation in Telangana.