Rana took three hours, 56 minutes and 48 seconds to complete the race. Sergey Kirdyapkin of Russia strolled to the gold medal.
Kirdyapkin, a two-time world champion, posted an Olympic record time of three hours, 35 minutes and 59 seconds. Australia’s Jared Tallent retained the silver won in Beijing Games.
Spotted: Virat Kohli, Anushka Sharma and other celebs at Mumbai airport
Photos: Salman Khan's 'special friend' Iulia Vantur at a song launch
Photos: Hrithik Roshan, Anushka Sharma, other celebs dazzle at event
In Pictures: Sex scandals involving Indian politicians
Photos: Abhishek Bachchan and Farah Khan at Boman Irani's birthday bash