Union Home Minister Rajnath Singh on Sunday spoke to Karnataka Chief Minister S Siddaramaiah following a low-intensity blast in Bengaluru and assured all all help from the Centre.During the telephonic conversation, the Chief Minister briefed the Home Minister about the prevailing situation in Karnataka, particularly in Bengaluru.“Spoke to Karnataka CM Shri S Siddaramaiah regarding the Bangalore blast. He apprised me of the situation. Centre ready to provide all help,” Singh tweeted.