Mumbai, April 13 -- Before he could break the longest standing national record in Indian athletics, Sawan Barwal fell around 100 metres to the finish line of the Rotterdam Marathon. Strong and cold wind compounding the physical toll on the marathon debutant, Barwal lay almost blacked out for a good 45 seconds before a volunteer helped him get back up. Up and running again, Barwal collapsed at the finish line. But not before doing what no Indian athlete had in 48 years-better the men's marathon national mark. The Armyman from Himachal Pradesh clocked 2:11:58 on Sunday while finishing 20th in the race, breaking the late Shivnath Singh's record of 2:12:00 set at Jalandhar in 1978. So long had it remained unchallenged that generations of marath...