| Sl.No. | Unit / Block | Link |
| 1 | IGNOU UNIT 01 (Introduction to Hydrology) Study Material 2026 | Download |
| 2 | IGNOU UNIT 02 (Hydrological Losses) Study Material 2026 | Download |
| 3 | IGNOU BLOCK 01 (Elementary Hydrology) Study Material 2026 | Download |
| 4 | IGNOU UNIT 03 (Rainfall and its Measurements) Study Material 2026 | Download |
| 5 | IGNOU UNIT 04 (Measurement and Estimation of Runoff) Study Material 2026 | Download |
| 6 | IGNOU BLOCK 02 (Rainfall And Runoff Measurement) Study Material 2026 | Download |
| 7 | IGNOU UNIT 05 (Water Pollution) Study Material 2026 | Download |
| 8 | IGNOU UNIT 06 (Water Quality Parameters) Study Material 2026 | Download |
| 9 | IGNOU UNIT 07 (Water Quality Basic Treatment Measures) Study Material 2026 | Download |
| 10 | IGNOU BLOCK 03 (Water Quality) Study Material 2026 | Download |
| Sl.No. | Unit / Block | Link |
| 1 | IGNOU UNIT 01 (जलविज्ञान का परिचय) Study Material 2026 | Download |
| 2 | IGNOU UNIT 02 (जल की हानियां) Study Material 2026 | Download |
| 3 | IGNOU BLOCK 01 (आरंभिक जलविज्ञान) Study Material 2026 | Download |
| 4 | IGNOU UNIT 03 (वर्षा और उसका मापन) Study Material 2026 | Download |
| 5 | IGNOU UNIT 04 (वहाजल का मापन और आकलन) Study Material 2026 | Download |
| 6 | IGNOU BLOCK 02 (वर्षा एवं वाहजल का मापन) Study Material 2026 | Download |
| 7 | IGNOU UNIT 05 (जल प्रदुषण) Study Material 2026 | Download |
| 8 | IGNOU UNIT 06 (जल की गुणवत्ता के प्रचाल) Study Material 2026 | Download |
| 9 | IGNOU UNIT 07 (जल की गुणवत्ता के लिये मौलिक (बुनियादी) उपचार के उपाय) Study Material 2026 | Download |
| 10 | IGNOU BLOCK 03 (जल की गुणवत्ता) Study Material 2026 | Download |