Mumbai, Aug 12 (PTI) Shiv Sena chief Uddhav Thackeray will address party workers virtually on Saturday on the 62nd anniversary of `Marmik", a magazine founded by his father late Bal Thackeray.The anniversary of the weekly comes at a time when Thackeray is facing the challenge of retaining the control of the party his father founded.Yuva Sena chief Aaditya Thackeray is also expected to speak at the event.`Marmik" was founded on August 13, 1960, after Bal Thackeray quit his job as a cartoonist with the Free Press Journal. Thackeray"s brother Shrikant was a co-founder of the magazine.The magazine, which championed the cause of the `Marathi Manoos" (sons of the soil), was a precursor to the formation of the Shiv Sena.Uddhav Thackeray resigned as Maharashtra chief minister in June following a rebellion by party leader Eknath Shinde.He is expected to launch another tirade against the Shinde camp during the occasion. PTI PR KRK KRK