New Delhi/Mumbai, April 23 -- Regulatory approvals in Europe for Tata Motors Ltd's $4.4 billion acquisition of Iveco are running behind schedule, potentially pushing the closure of its largest-ever buyout past the April-June target, according to two persons in the know.

Pending clearances from the European Central Bank and the European Commission could delay revenue recognition and integration plans, adding near-term uncertainty even as the company continues to engage with regulators for an early closure.

"Approvals from European Central Bank and European Competition Commission are still pending, which should have come a couple of months back. The deal is running behind schedule," one of the persons mentioned above said on the condition...