Amla brilliant as Proteas pile on the runs

The Proteas have reached 517 for 7 in the last session of day on day 2 of the first test against India in Chennai.
Hashim Amla was run out on 159.
He hit 20 fours in his marathon innings of 404 minutes and 262 balls.
AB de Villiers got a quick fire 44 and Mark Boucher scored 70.