India is on high alert today following warnings of a possible further terrorist attacks. Security has been boosted at the country's major airports and military chiefs have been warned to prepare for possible attacks from the air and the sea. The development follows intense criticism of India's security services in the wake of the three-day Mumbai siege at the weekend. Yesterday, police found two bombs at the city's main train station almost a week after they were left there by the gunmen involved in the siege. Meanwhile, India has claimed that two senior leaders of the Pakistani-based militant group Lashkar-e-Taiba planned and orchestrated the Mumbai incidents. India has been pointing the finger of blame towards Pakistan, which has promised to aid in the investigation, while the US is also demanding that the country do more to crack down on Islamic militants.