Lashkar-e-Taiba operative David Headley's confession about his involvement in the Mumbai terror attack would add weight to New Delhi's claims of Pakistan's involvement in terrorist acts against India, the Bharatiya Janata Party (BJP) said Friday.

"It will be very clear to the world community that Pakistan is involved in the terror attacks against India after Headley has pleaded guilty to 26/11," BJP spokesperson Prakash Javadekar told IANS.