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SKG Sangha has been running biogas extension programmes in Egypt and Mali, although these programmes were started before Foundation SKG Sangha could be registered. The programme in Egypt was funded by UNDP and manuals were provided to assist local extension workers and biogas plant users with the technology. Copies of these manuals are available below, written by Kiran Kumar Kudaravalli, edited to improve the English.
The biogas plants built by SKG Sangha are underground tanks made from masonry. Before 2017, the plants were made to the Deenbandhu design, which uses rings of bricks. Where bricks are less available, of inadequate quality, or too expensive, they have made plants to the Suntala design, which uses concrete cast over a metal mould, formed of sections, which looks like half an orange (suntala).