Filmmaker-actor-singer Farhan Akhtar pointed out a "glaring error" made in a West Bengal school book and urged the West Bengal Education Minister Partha Chatterjee to rectify it.Farhan, who played the title role in the Indian track and field legend Milkha Singh's biopic "Bhaag Milkha Bhaag", pointed out that a Bengali school textbook carried his image instead of the athlete."To the Minister of School Education, West Bengal. There is a glaring error with the image used in one of the school text books to depict Milkha Singhji. Could you please request the publisher to recall and replace this book? Sincerely," Farhan tweeted on Sunday.On the work front, he will be next seen in director Shonali Bose's "The Sky Is Pink", alongside Priyanka Chopra and Zaira Wasim.