Seven people were injured in twin blasts in Jammu this morning, said police, with the terror attack raising security concerns over Congress leader Rahul Gandhi's Bharat Jodo Yatra in Jammu and Kashmir. The blasts at an industrial area in Narwal area of Jammu occurred at a time when the Union territory is under a heavy security blanket in view of the footmarch. Mr Gandhi's yatra is currently on a break at Chadwal, over 60 km from Jammu.