The blasts Thursday killed 16 people, Indo-Asian News Service said.
Singh visited the scenes of the blast, the injured at two hospitals and also spoke to doctors about the patients' conditions.
Six victims are in critical condition, while another 94 are undergoing treatment at hospitals, Indo-Asian News Service said.
During his visit, Singh praised the people for remaining calm after the terror attacks and said he wished all the injured a speedy recovery.
After returning to Delhi, Singh met with top officials on the investigation into the explosions, Indo-Asian News Service reported.
No one has taken responsibility for the attacks.