For some people collecting data is attractive part time work.
Science teacher Jolly Arifur was looking for work she could do from home that would fit around her young son.
"For the past seven months, I strapped a rig-mounted camera on my head while doing my routine domestic work scrubbing, cooking, sweeping tile floors, and folding laundry."
Arifur, who lives in Guntakal, Anantapur, fits the recording work around her teaching.
"I get paid two to three dollars per hour. If I record three to five hours a day, that's a good amount in hand it's become an extra source of income for me, on top of teaching. I'm managing both honestly, fantastically."
