The blast which took place outside the Delhi high court on September 7 has claimed another life, taking the toll up to 15. Seventy-six people had been injured in the blast.
Rattan Lal Shroff, 64, a resident of Delhi's Model Town, died at the Trauma Centre of Ram Manohar Lohia hospital on Saturday.
Shroff had been severely injured. Both his legs had to be amputated and he underwent several operations on his chest over the last 10 days.
His condition deteriorated since Tuesday after he developed infection in his lungs.
Despite putting him on strong antibiotics, the doctors could not stop the infection from spreading.
"He went into septic shock, which eventually caused his death," said one of the doctors attending on him.