Park resource use

Major Govt. agencies/institutions using park resources are,

1. Kallada Irrigation Project.
2. Kerala State Electricity Board.
3. Thenmala Eco-tourism Promotion Society.
4. Research Institutions.
5. Tribal Co-operative Society.

Kallada Irrigation Project [KIP]
Kallada Irrigation Project [KIP] is a multipurpose project meant for power generation, irrigation and recreation. The sanctuary is part of the catchment area of Parappar Dam constructed across Kallada River for irrigation purpose in Kollam and Pathanamthitta Districts.

Kerala State Electricity Board
Kerala State Electricity Board is generating 15-mega watt electricity from the reservoir water of the sanctuary.

Thenmala Eco-tourism Promotion Society
Thenmala Eco-tourism Promotion Society project is conceived to promote Eco-tourism in the high ranges of Kollam and Pathanamthitta district. The sanctuary area is included in this recreational project. The project uses the sanctuary area for the recreational purpose, i.e. trekking, bird watching, boating, etc. The Wildlife Warden of Shendurney Wildlife Sanctuary is the programme coordinator of Eco-tourism project. As part of nature education and interpretation programme, the sanctuary area serves the people under the tourism project.

Research institutions
Various government and non-government research institutions conduct research studies relating to biodiversity of flora and fauna, vegetation analysis, mapping etc after getting permission from the Forest Department. The findings from these scientific studies contribute to better understanding of the environment and the resources and also facilitate the department in formulating better management strategies. The important institutes conducting scientific investigation within the sanctuary are Kerala Forest Research Institute, Tropical Botanic Garden and Research Institute, Salim Ali Centre for Ornithology and Natural History, College of Forestry Kerala, Central Inland Fisheries Research Institute, Kerala University etc.

Tribal Co-operative Society

Rosemala, Kattilappara and Kallar estates are the human inhabited areas of the sanctuary. About 360 families are living in Rosemala, 34 families in Kattilappara and 56 families in Kallar estates. These 450 families were heavily depending on the resources of the sanctuary for their daily sustenance, such as:
1. Firewood                                               
2. Thatch poles   
3. Cane and reeds
4. Medicinal plants
5. Honey, resins and gum                                                                 
6. Fodder grass
7. Sand     
8. Water - (drinking and irrigation)
9. Manure
10. Fish etc.
The degree of dependency is very high with tremendous impact upon the resources. Excessive collection may lead to the disappearance of many endangered, endemic and threatened species of Western Ghats especially medicinal plants including those that are yet to be discovered.