Did Rahul Gandhi stumble and fall on camera?

Prime Minister Narendra Modi was on an expedition to survey the Ganga cleansing process. During his visit he tripped and fell on his way up the stairs. This video was viewed widely.

Following this a picture surfaced showing a man wearing a white kurta lying on the road. The man in the picture was claimed virally to be Rahul Gandhi.

On investigating, it was found that the person in the picture is Robert Vadra, husband to Priyanka Gandhi Vadra. He had fainted in a golf course in Gurugram. The video was released by a news agency on March 5, 2012 on YouTube.