Israel has warned its nationals against traveling to India saying there is a concrete threat of terror attacks on Chabad centres and synagogues in the country. Its Counter-Terrorism Bureau said the threat of possible attacks against Israeli nationals has become significantly more severe since a stark travel advisory was issued last month. Israel's Channel 10 reported that the new warning is based on fresh intelligence received by Israeli officials indicating that a 'Global Jihad' group had teamed up with the Pakistani terror cell responsible for the 2008 Mumbai massacre and is planning an attack. The bureau also issued a separate advisory against visiting Jammu and Kashmir.