In a cruel twist of fate, 22-year-old techie Swati fell victim to the twin bomb blasts on the Bangalore-Guwahati train just two months before she was to tie the nuptial knot. br br A high security red alert has been announced in New Delhi in the wake of the blasts in Chennai. br br A National Investigation Agency team reaches the site of the twin blasts in a train in Chennai. br br Union Minister Adhir Ranjan Chowdhury says it was not possible for railways to provide fool-proof security to its vast infrastructure and asks states to give "more attention" to it.