It was announced in the 16th issue of this year’s Weekly Shonen Jump magazine on Monday that the ongoing anime series Gintama will end this month. Don’t fret for the series will return on July to go into the “climate” of the “Shirogane no Tamashii” (Silver Soul) arc. The last episode 353 will air on March 25.
The “Silver Soul” arc of the anime began airing on January 7 which is the manga’s final arc that was published in July 2016.
The current Gintama anime premiered last October beginning with the Porori Arc.
Source: Anime News Network