Mumbai: A day after row erupted over a Republic Day advertisement of Information and Broadcasting Ministry, the Shiv Sena today demanded "permanent deletion" of the words 'secular' and 'socialist' from the Constitution.

An acrimonious war of words had broken out between political parties yesterday when an advertisement issued by the I&B Ministry carried a picture of the Preamble to the Constitution as it appeared before the 42nd Amendment, without the words 'secular' and 'socialist'.