At the age of 36 he published his work on the Sefer Hamitzvos of Maimonides, called Chemdas Yisrael.

He was voted chairman of Agudas Harabbanim of Poland, a prelude to Agudath Israel.

In 1921, Rabbi Plotsky participated in a tour of American cities on behalf of the Agudath Israel, visiting New York, Baltimore,[4] Boston[5] and Cincinnati.

[6] At the age of 60, he left the rabbinate to head a large yeshiva in Warsaw, known simply as the Mesivta.

[3] From 1930, his son-in-law, Rabbi Yaacov Shraga Zinger, took his place as rav of Ostrow-Mazowiecka.