New Delhi, Sep 1 (IANS) India will send its answers in a day or two to Pakistan on its queries about Pakistani American David Coleman Headley's visits to Indian cities prior to the 2008 Mumbai attack, Home Minister P. Chidambaram said Wednesday.

'They gave a dossier on David Headley. We have furnished answers. The answers are being given to the ministry of external affairs and I am sure they will hand over the answers to Pakistan high commission either today or tomorrow,' Chidambaram told reporters here.

He was asked about the 51 questions posed by Pakistan about Mumbai terror attack accused Headley, who is in US custody and was interrogated by Indian investigtors.

Pakistan's interior ministry had last month sent a note relating to Headley and Lashkar-e-Taiba chief Haafiz Saeed and their role in planning the Nov 26-29, 2008 Mumbai attack that claimed 166 lives.

The questions also relate to Headley's nine trips to India and details about the people whom he met.

The note asks whether the Indian government knew about Headley's visits and whether he was under surveillance at the time. It also seeks basic information like Headley's parentage, which is readily available with Pakistan, an official said.

The Pakistani note is in response to India's 10 dossiers, including three specifically relating to Saeed, about the involvement of Pakistani nationals in the Mumbai attack.