Overseas Congress chief Sam Pitroda asked why PM Narendra Modi's Diwali greetings referring to him as "Sam Bhai" triggered such an uproar. PM Modi had extended wishes after Pitroda praised him as a warm, kind, loving and caring "Gujarati friend" on a personal level despite their political differences. "Thank you very much for the greetings, Narendra Bhai," Pitroda had reciprocated.