 In Cheshvan 1954 the Ponovezher Rav, Rabbi Yosef Shlomo Kahaneman, opened a "yeshiva ketanah" in the Ponovezh yeshiva and invited Rabbi Lefkowitz to serve as rosh yeshiva together with Rabbi Aharon Leib Shteinman.Rabbi Lefkowitz raised thousands of students, and even taught the grandchildren of his original students.In the first and second years of the "yeshiva ketana", Rabbi Nissim Karelitz and Rabbi Chaim Kanievsky were his students.