Navya Naveli Nanda, the granddaughter of superstar Amitabh Bachchan, has joined the Indian Institute of Management in Ahmedabad for an online MBA. IIM-A professor Promila Agrawal commented on Navya Naveli Nanda's MBA program. Her post, however, was soon inundated with uncharitable comments about how her course is not “a real MBA.” Hundreds of people confessed they were surprised that a …