Later he taught in the Bulgarian High School in Skopje, where he became a member of Internal Macedonian Revolutionary Organization (IMRO).

On the other hand, in some areas, as in Kumanovo, the strong pro-Serbian propaganda gained support, and other districts, as Kratovo, were under the control of the Supremists.

Before the start of the Ilinden Uprising in 1903 Pushkarov had on his disposal an armed detachment of 18 people, which carried 100 kilograms of dynamite and 200 bombs.

On July 22, the band of Pushkarov settled in the Monastery "St. John", near the village of Vetarsko, close to where the river Pchinya flows into Vardar.

[2] On 3 and 5 August respectively, they attacked a Turkish unit, guarding the bridge on the Vardar river and gave a battle in the "St. John" monastery.

He could no longer return to Skopje, as the Turkish police actively sought him and worked as a teacher in Plovdiv, Sofia and Vidin.