- Jarwa: Indigenous to the Andaman Islands, the Jarwa people traditionally subsist through hunting and gathering. Their economy and lifestyle are characterized by nomadic hunting and gathering practices.
- Toda: Native to the Nilgiri Hills, southern India, the Toda people are primarily pastoralists focused on dairy farming, not hunting and gathering.
- Gujjar: The Gujjar community's economy is centered on animal husbandry, particularly cattle herding, and does not involve hunting and gathering.
- Bakarwal: The Bakarwal people are pastoralists who herd goats and sheep, distinguishing them from a hunting and gathering subsistence model.
Step 1: Analyzing the subsistence economy.
Based on the provided descriptions, only the Jarwa people are identified as practicing a subsistence economy reliant on hunting and gathering.
Final Answer:
\[\boxed{\text{The correct answer is (1) Jarwa.}}\]