New Delhi/ Amritsar/ Patna, Dec 28 (ANI): Prime Minister Narendra Modi on Sunday lauded Guru Gobind Singh's courage and spirit of sacrifice on his birth anniversary. "The life and ideals of Guru Gobind Singhji inspire eternally. He epitomised ultimate courage and a spirit of sacrifice. I bow to him," the Prime Minister tweeted. Meanwhile, people in Amritsar celebrated the Sikh leader's birthday. They took a dip in the holy pond and sought blessings from the almighty. Guru Gobind Singh formed the Khalsa by selecting five persons from different castes belonging to different regions. He baptised them as Sikhs, thus giving a lesson of casteless society and national integration. Community kitchens are also being organised.