Powered By EPIC ON. The Sponge Podcast Leadership Lessons with Author and Veteran Adman with 40 years of experience in advertising Ambi Parmeshwaran.Each episode is an indepth conversation about a chapter from Ambis new book Sponge Leadership Lessons I Learnt From My ClientsHost Amit Doshi sits down with Ambi as he shares some of the best advice he’s gotten over the years from reading, asking questions, observing, and acting more like a sponge.