The Tamil Nadu vs centre 'language war' - over the National Education Policy and its three-language formula, which the southern state views as 'imposition of Hindi' - exploded inside and outside Parliament Monday with Education Minister Dharmendra Pradhan criticising the latter's ruling Dravida Munnetra Kazhagam for "ruining the future of students (from the state)". He also used a pejorative - to describe Tamil Nadu - that he later withdrew and was then expunged from the Lok Sabha's records.