SP Group Chairman Shapoorji Pallonji Mistry Friday reiterated calls for public listing of Tata Sons to bring transparency, amid “infighting” among trustees of Tata Trusts which controls a 66 per cent stake in the holding company of the salt-to-software conglomerate.

Shapoorji Pallonji family is the single largest minority shareholder with about 18.37 per cent in Tata Sons.

In a statement, Mistry called for the RBI’s compliance timeline of September 30, 2025 for Tata Sons to be listed “under the ‘Upper Layer’ classification “be viewed with the seriousness and sanctity that regulatory commitments deserve”.

The Shapoorji Pallonji Group has consistently advocated the public listing of Tata Sons, Mistry said.

“We firmly believe that listing this premier institution will not only uphold the

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