Actor Irrfan Khan flagged off a walkathon to raise awareness about organ donation on the occasion of Indian Organ Donation Day on Sunday."My relatives have faced problems, my nephew39s wife has suffered from organ failure. Please donate your organs, make someone else live their life," Irrfan, who was accompanied by Paralympic silver medallist Deepa Malik to an event, said in a statement.The organisers took up the cause of organ donation in an effort to positively impact the well-being of the nation. It aimed at sensitising the eco-system, raising awareness around organ donation, creating a nationwide movement for people to pledge their organs and to make the process of pledging easily accessible to the masses."When people like Irrfan promote such a campaign, it becomes an instrument of awareness. We must initiate such campaigns. The Walkathon is not about walking, the message should prevail," Malik added.As a culmination of the four-month-long campaign, the walkathon was organised across five cities of Gurugram, Mumbai, Mohali, Chennai and Delhi. It saw participation of people from all walks of life, from students to corporate officials.