The foundation stone for the Kartarpur Sahib corridor to the Sikh shrine in Pakistan was laid on the Indian side by Vice-President Venkaiah Naidu and Punjab Chief Minister Amarinder Singh today. Both India and Pakistan recently accepted this long-pending demand of the Sikh community. The corridor will let Sikh pilgrims visit the iconic Gurudwara Darbar Sahib at Kartarpur on the banks of river Ravi in Pakistan. Guru Nanak Dev is believed to have spent the last 18 years of his life there. But there's plenty of politics taking place on the issue including sharp divisitions between Amarinder Singh and Navjyot Singh Sidhu.