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. <br/>India today sought to down play an advisory issued by Israel to its nationals against traveling to India and said the warning is routine in nature. Home Secretary G K Pillai told reporters in New Delhi that there is no specific terror threat to any installation. Home Ministry sources said adequate security are being provided to sensitive religious centres, including Chabad centres and synagogues.