Samyukta Kisan Morcha, an umbrella body of over 40 farmer unions, on Saturday announced that it will observe May 26 as black day', marking six months of their protest at Delhi's borders against the Centre's three farm laws. In a virtual press conference, farmer leader Balbir Singh Rajewal appealed to people to raise black flags at their houses, vehicles and shops on May 26 to protest against the contentious farm legislations. "On May 26, we will complete six months of this protest and it also happens to mark seven years since PM Modi formed the government. We will observe it as black day," Rajewal said.