Police have intensified their investigation into the blast at Bengaluru's popular eatery, the Rameshwaram Cafe, that took place on Friday, leaving 10 injured . The Siddaramaiah-led Congress government in Karnataka expressed confidence that those behind the explosion will be nabbed at the earliest based on CCTV images . On Saturday, the state government said that it was not possible to specify at the moment if any outfit was involved in the incident .