| 21 | ||
| Researcher: | Singh, Tirlochan | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 22 | ||
| Researcher: | Kalia, Vipan | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 23 | Cytomorphological studies in hepaticae with particular reference to marchantiales | |
| Researcher: | Kachroo, P | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 24 | ||
| Researcher: | Prakash, O m | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 25 | Morphogenetic studies in vitro in Cedrus deodara Roxb Gamolepis tagetes DC and Hyoscyamus niger Linn | |
| Researcher: | Jyotsna, Vimal | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 26 | Pharmacognosy in Indian aconites long pepper piper longum linn and Gaduchi Tinospord Spp | |
| Researcher: | Singh, Har Sharn Jit | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 27 | ||
| Researcher: | Bawa, Kamaljit Singh | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 28 | Physio morphogenetic studies on some herbaceous and woody angiosperm species | |
| Researcher: | Mehra, Asha | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 29 | ||
| Researcher: | Jolly, S S | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 30 | ||
| Researcher: | Sharma, Manohar Lal | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 31 | ||
| Researcher: | Gill, Bhagat Singh | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 32 | Effect of chemical mutagens on the cytology and morphology of pterotheca falconeri Hook F | |
| Researcher: | Surrinder, Surrinder | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 33 | Effect of chemicals on mitosis and meiosis of Tragopogon gracile don and Pterotheca falconeri hook f | |
| Researcher: | Kumari, B Lalitha | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 34 | Cytological investigations in the orchidaceae of Khasi and Jaintia hills | |
| Researcher: | Nath, Ravinder | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 35 | Life history and culture work on some West Himalayan hepatics | |
| Researcher: | Kaur, Jasbir | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 36 | Pharmacognostic investigations on some Indian umbelliferous plants | |
| Researcher: | Raina, Maharaj Krishen | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||
| 37 | ||
| Researcher: | Vij, Suraj Parkash | |
| Guide: | Mehra, P N | |
| University: | Panjab University | |
| Language: | English | |
| Shodhganga | ||