India, Nov. 19 -- A political slugfest erupted on Tuesday after the emergence of a video showing Red Fort bomber Dr Umar un Nabi defending suicide attacks, with the BJP accusing the Congress and its allies of fostering an environment that enables radicalisation, and the Congress urging political restraint until the investigation concludes.

BJP leader Rajeev Chandrasekhar, intensifying his attack, claimed the bomber's defence of suicide bombing "is not an accident" but the outcome of what he called the "dangerous, shameless politics" of Rahul Gandhi's Congress and its INDI bloc partners.

He alleged that alliances involving the Congress, CPM and groups like SDPI and Jamaat-e-Islami in Kerala had created fertile ground for radicalisation o...