Laungi Bhuiyan spent about 30 years digging a 3-km canal by hand through the hills of Gaya, Bihar - alone, while grazing his cattle - so his drought-stricken village could irrigate their fields. The canal now channels rainwater to 8-10 villages. When the story went viral in 2020, Anand Mahindra called the canal "as impressive a monument as the Taj or the Pyramids."