New Delhi, July 31 -- Singaporean President Tharman Shanmugaratnam has invited the seven Indian migrant workers who saved a woman driver from a sinkhole. They have been invited to the Istana presidential palace on August 3.

The Indian workers who have been invited to the presidential palace are: Pitchai Udaiyappan Subbiah, 47, and his co-workers Velmurugan Muthusamy, 27, Poomalai Saravanan, 28, Ganesan Veerasekar, 32, Bose Ajithkumar, 26, Narayanasamy Mayakrishnan, 25, and Sathapillai Rajendran, 56.

Pitchai Udaiyappan Subbiah is a site foreman whose quick thinking saved the woman.

Pitchai Udaiyappan Subbiah and his colleagues were working at a PUB worksite near the One Amber condominium when the incident happened. The migrant workers h...