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Case Study 2026

C3. Leveraging Social Media to boost brand ROI and engagement

Categories Name : SOCIAL MEDIA

Sub-Category : Leveraging Social Media to boost brand ROI and engagement

Campaign Name : How Cadbury 5Star Destroyed Valentine's Day

Results

Cadbury 5Star has always stood for one truth: Do Nothing. In a world obsessed with hustle, 5Star gives Gen-Z permission to opt out — and celebrates them for it. Valentine's Day was the perfect battleground. While every chocolate brand floods feeds with aspirational romance, Gen-Z singles disengage — they find over-the-top couple content cringey and irrelevant. 5Star's strategy was to own that tension: destroy Valentine's Day by making it uncool, converting cringe into engagement and engagement into talkability. The goal was to make Gen Z active participants — not passive viewers — driving a 10% earned media uplift and 5% sales growth YoY.
The insight: trends die the moment "uncles" adopt them. So 5Star recruited real cultural uncles — Chunky Pandey, Baba Sehgal, and a wave of macro and micro influencers — to flood social feeds with hilariously exaggerated Valentine's content. But beyond the idea, the genius was in its participatory design. Gen-Z didn't just watch — they nominated their own uncles, shared "Uncle Cards," and co-created the moment. Every element was engineered for engagement: content formats built for saving and sharing, influencer casting that guaranteed reactions, and a microsite that turned passive audiences into active brand advocates.
Engagement was the north star of every executional decision. Uncle-influencers were briefed to provoke reactions — comments, shares, nominations — not just impressions. Commerce integrations with Flipkart (~120Mn MAU) and Zomato (~40Mn Gen-Z MAU, 30+ cafés) placed the brand in high-intent, high-engagement environments. A personalised "Uncle Card" microsite acted as the participation engine — converting laughter into shareable content that spread organically, extending earned reach without additional spend.
Engagement was the engine that powered talkability — and talkability delivered earned impressions at scale. The campaign achieved a 47% engagement rate across core digital platforms; micro-influencers drove 62% ER (+15pts vs standard). This participation loop fuelled organic conversation, earning 380Mn+ impressions — 15% above target. When audiences actively participate, brands don't buy reach — they earn it. Digital VTR hit 55% (+20pts above benchmark); Flipkart banners clocked 8% higher CTR. Commercially, 14% sales growth and a +1.2% chocolate category market share gain followed.