 Fifty-four revolutionaries lost their lives in the battle of "Nozhot" (the Knife) which was later sung in songs by the people and celebrated during Serbian rule.In 1907 after Boris Sarafov and Ivan Garvanov were killed by the inner opposition in IMARO, Tana Nikolov found new friends in the faces of Hristo Matov, Vasil Chekalarov and Nikola Kostov.In March 1908 he attended the IMARO congress near the town of Kyustendil as a delegate from the region of Bitola.