Mumbai, June 19: The Eknath Shinde and Uddhav Thackeray-led factions of the Shiv Sena will celebrate the party's foundation day at separate events here on Monday.

Bal Thackeray, a political cartoonist, founded the Shiv Sena on June 19, 1966, and made the pride of `Marathi manoos' (Marathi speakers in Mumbai) the core plank of its politics. Major Blow To Uddhav Thackeray, MLC Manisha Kayande Joins Eknath Shinde-led Shiv Sena (Watch Video).

Both the factions have now been trying to claim the mantle of the 'true inheritor' of party founder late Bal Thackeray's legacy ahead of the next year's Lok Sabha and Maharashtra Assembly elections as well as the long-due civic polls in Mumbai.

The Shiv Sena split in June last year after Shinde and 39 other party MLAs rebelled against then Maharashtra Chief Minister Uddhav Thackeray and toppled the Maha Vikas Aghadi coalition government of the Sena, NCP and Congress.

Shinde then became chief minister with the BJP's support and the Election Commission of India subsequently granted his faction the original party name and `bow and arrow' symbol while the Thackeray group was named Shiv Sena (Uddhav Balasaheb Thackeray).

While the Shinde-led Shiv Sena will hold its event at the NESCO ground in Goregaon in northwest Mumbai on Monday, the Shiv Sena (UBT) will celebrate the foundation day at Shanmukhanand Hall at Sion in central Mumbai. Maha Jolt: Thackeray Loyalist Subhash Desai's Son Joins CM Shinde-led Shiv Sena.

Shiv Sena MP Shrikant Shinde, the son of chief minister Eknath Shinde, last week said party workers from across the state will gather for the event.

Shiv Sena (UBT) leader Sanjay Raut has asserted that the Uddhav Thackeray-led group is the real Shiv Sena.