India, June 25 -- Remember the drama that was created around actor Priyanka Chopra Jonas' Ralph Lauren trench coat gown which boasted of a 20 feet train. While that look or should we say that 'train' got her numerous memes and had everyone talking about it, this extended piece of clothing has always been a favourite red carpet choice. We take a look at what makes this piece of fabric a favourite on the red carpet and how you can rock it at the next event....