Lucknow, Mar 27 (ANI): BJP President Rajnath Singh expressed concern over possible attack on BJP’s Prime Ministerial candidate Narendra Modi, after Intelligence Bureau issued alert of suicide bomber threat. Reportedly, as per the high alert, the attack may be on the lines of assassination of former Prime Minister Rajiv Gandhi. The IB reports also stated that Gujarat Chief Minister Narendra Modi, won’t be shot at, but it is likely that a suicide bomber disguised as a supporter may target him. The agencies also suspect that the attack may take place in Modi’s own constituencies of Varanasi or Vadodara.