Officials said the searches covered multiple premises of the firm in Mumbai and Delhi after the department received "actionable evidence" to mount the action.
They said some instances of "asset transfers" are also under their scanner. They added documents and computer peripherals have been seized by I-T sleuths even as the action is continuing.
Indiabulls Housing Finance Limited acknowledged the development in a clarification to the BSE.
"With reference to today's email received from the exchange, we would like to state that this morning, officials of the Income Tax Department came to some of our offices to check our books, in the normal course. We are extending all assistance to the team of officials. We are confident that the officials will find our corporate practices and books satisfactory.
(Reopens DES23)
Over 30 premises in a dozen cities were brought under the search operations, they said, adding over 100 officials were part of the operation.