PURPORT

Srila Visvanatha Cakravarti Thakura remarks that Indra, by his yogic power, first expanded the body of the one Marut into seven, and then when he cut each of the seven parts of the original body into pieces, there were forty-nine. When each body was cut into seven, other living entities entered the new bodies, and thus they were like plants, which become separate entities when cut into various parts and planted on a hill. The first body was one, and when it was cut into many pieces, many other living entities entered the new bodies.