Ad veteran and ex-Big Bazaar CMO Jishnu Sen passes away in Bengaluru

Jishnu Sen, former CMO of Big Bazaar and brand strategist at Essar Telecom Retail, has died in Bengaluru. He built Grey Group into one of India's top-five agencies over a seven-year tenure and later advised D2C startups Porter and Dealshare.

— Source publishedMon, 6 Jul, 2026, 09:14 IST·First seen Mon, 6 Jul, 2026, 09:49 IST·Source ET BrandEquity

What happened

Advertising veteran Jishnu Sen, former CMO of Big Bazaar and brand strategist at Essar Telecom Retail, passed away in Bengaluru. He advised D2C startups Porter

Key facts

  • 7-year tenure
  • top five agencies

Why this matters

The passing of a senior CMO who advised D2C startups like Porter and Dealshare signals thinning of experienced brand-strategy advisory talent available for retail ventures.

What to watch

  • New senior marketing hire announcements at Porter/Dealshare
  • Grey Group or Essar alumni movement into CMO roles
  • Bengaluru retail-marketing talent churn signals
  • Monitor Porter and Dealshare for advisory-board or CMO backfill announcements
  • Track agency and brand tributes to map his active network of proteges
  • Assess whether any live brand-strategy engagements were mid-flight and now unowned

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