After the demerger, one entity will house the passenger and electric vehicles as well as the Jaguar Land Rover businesses, along with related investments.

The other company will focus on commercial vehicles and related investments, the automaker said in an exchange filing on Monday.

The demerger may not result in any immediate change in the Street's valuation approach, analysts at Nomura said, adding that in the medium term, the businesses should still be able to pursue their respective strategies with greater freedom.

Shareholders will have an identical shareholding in both listed companies after the split, Tata Motors said.

The demerger will be presented to the board and is expected to undergo necessary approvals, taking 12-15 months.

Shares of Tata Motors have risen 31.7% so far this year, as of last close.

(Reporting by Navamya Ganesh Acharya in Bengaluru; Editing by Sherry Jacob-Phillips)