IBM Research India's Delhi lab and the NGO Development Support Centre (DSC) launched Avaaj Otalo ("voice stoop") in Surendranagar district, Gujarat, in 2008: a free interactive voice forum that lets small farmers use any phone — no literacy or smartphone required — to record questions, browse others' questions and answers on farming topics, and hear expert responses and weekly radio-programme summaries. From January 2010 the service was carried on and commercialised by the spin-out social enterprise Awaaz.De, co-founded by Neil Patel and Tapan Parikh, which has since extended the same IVR model to health, education and microfinance clients while continuing agricultural-extension work.
A 2010 CHI conference field study (Patel et al., ACM Best Paper award) documented how the forum grew into a lively social space with its own moderation norms. Stronger causal evidence followed: economists Shawn Cole (Harvard Business School) and Asanga Fernando (University of Notre Dame) ran a randomized controlled trial giving free access to 1,200 cotton-farming households across 40 villages in Surendranagar (2011–2013). Ninety percent of treatment households called the service at least once, averaging 22 calls each over two years, and were 12.5 percentage points more likely to adopt agronomists' recommended seeds and inputs than the comparison group. The same study found no measurable effect on farmers' yields or profits over its study window — an honest limitation worth noting alongside the adoption gains.
Read the full analysis: https://www.atai-research.org/project/avaaj-otalo-bridging-the-last-mile-delivering-mobile-phone-based-agricultural-extension-in-india/
Where this practice's information was retrieved from, and when.