India accused Pakistan's military spy agency, the ISI, of orchestrating a previous attack on the Indian embassy in the Afghan capital last year that killed 58 people.
While New Delhi has not yet pointed any finger of blame over Thursday's blast, links will inevitably be drawn to Pakistan.
In Kabul, Foreign Secretary Nirupama Rao was due to visit the embassy and meet top Afghan officials to discuss security, but no details were immediately available.
"The foreign secretary is here to inspect the situation at the embassy and later today she will meet with President (Hamid) Karzai and Foreign Minister (Rangeen Dadfar) Spanta," said an Indian diplomat who asked not to be named.
The Taliban claimed responsibility for the latest blast, in which no Indian embassy staff were hurt.
The attack, carried out by a suspected suicide bomber, came at a time when India is seeking to retain influence in Afghanistan and control any possibility of an Islamist surge in a region with traditional ties to Islamabad.
Pakistan, for its part, has long seen Afghanistan as a strategic fall-back position in the event of war with India and fears being squeezed between India and a potentially hostile, Indian -backed Afghanistan.
