The government in Indian still has no leads as to who is responsible for the three Mumbai blasts that killed at least 17 people and injured more than 100.

Mumbai police did confirm however, that Improvised Explosive Devices (IED) were used in the blasts that happened during rush hour. The blasts took place in Dadar, Saveri Bazar and Opera House between 6 and 7 p.m. local time. The Union Home Ministry has confirmed the explosions are terror attacks.

However, Indian officials haven't acknowledged any suspicions on possible connections.

And reports are stating that there is caution on New Delhi's part as they aren't going to make hasty conclusions regarding who is behind the attacks.

That's because the India-Pakistan foreign minister level dialogues are set to begin on July 26 in New Delhi.

Home Minister P. Chidambaram told the Hindustan Times that every angle will be probed in the case of the Mumbai blasts. This was after being asked whether the blasts were an attempt to disrupt the talks set to happen later this month.

Chidambaram said India was living in the most troubled neighborhood as Pakistan and Afghanistan are the epicenter of terrorism, the Hindustan Times reported.

One senior official also told the paper that the investigations have begun and so they cannot comment on any specifics.

Though no one has come forward claiming responsibility for the series of bombings, The New York Times reported that a senior American law enforcement official has said that early indications pointed to Indian-based militants, not Lashkar-e-Taiba, a militant group in Pakistan suspected of the November 2008 Mumbai attack. That official did caution however, that because the investigation is still in its early stages it would be premature to come to a firm conclusion.

U.S. Secretary of state Hillary Rodham Clinton will visit Indian next week to talk about issues including regional security.

Some believe that Mumbai is being targeted because of population density among other things that attract terrorists.

Mumbai and Delhi will always remain terror targets. Delhi is the political capital and Mumbai the financial one. An attack on a city like Mumbai always rocks the nation and gets the attention of the world, which is what terrorist groups want, said state public works minister Chhagan Bhujbal, who was also home minister of the state, in a Hindustan Times report on July 14.