| 1 | Hydrogeology of Tirupati Renigunta area, Chittoor District, Andhra Pradesh, India |
| Researcher: | Krishna Reddy, T V |
| Guide: | Jagadeswara Rao, R |
| University: | Sri Venkateswara University |
| Language: | English |
| 2 | |
| Researcher: | Krishna Reddy, V V |
| Guide: | Naidu, P S |
| University: | Indian Institute of Science |
| Language: | English |