What is Outbox?
Outbox is a surprise planning startup based in Kolkata, founded by Siddhant Karia and Arpita Dutta. It specializes in curating personalized surprise experiences for individuals and corporate clients alike. Whether it’s organizing a midnight cake delivery with live musicians or staging a full-blown public marriage proposal with dancers, Outbox brings dreams to life — one emotion at a time.
Their unique approach to events has made them a go-to platform for millennials and Gen Z customers looking for creative ways to express love, gratitude, and celebration.

The Business Model: Outbox’s USP
Outbox works on a B2C and B2B hybrid model, offering:
- Surprise Packages: Customizable celebration packages for birthdays, anniversaries, or proposals.
- Celebrity Shoutouts: Partnered with regional celebrities for video greetings.
- Corporate Experiences: Employee surprise deliveries, onboarding kits, and client gifting.
- Event Planning: Themed events, engagements, and pre-wedding concepts.
They operate via direct bookings, social media inquiries, and WhatsApp-based planning, providing end-to-end execution including gifts, location setups, performers, and emotions — all managed discreetly to preserve the element of surprise.
Outbox on Shark Tank India: The Pitch
Appearing on Shark Tank India, the founders pitched Outbox not just as an event company but as an emotional experience brand. They showcased how they’ve built a team that doesn’t just execute logistics, they tell stories through surprises. The sharks were impressed by the emotional recall Outbox builds with customers and the strong brand loyalty it commands.
The founders asked for investment to expand their services beyond Kolkata into major metros like Delhi, Mumbai, and Bangalore, while also building tech infrastructure for smoother operations and booking automation.
Why Outbox Stands Out
- Personalization at its Core: Every experience is tailored to the individual and their story.
- Creativity in Execution: From celebrity video surprises to hot-air balloon proposals, they go beyond cliché.
- Emotion-Driven Business Model: They don’t sell products, they sell memories.
- Strong Social Proof: Viral videos and client testimonials have given them immense online traction.
Future Potential
With rising disposable income, urban lifestyle shifts, and the growing importance of experience-based gifting, Outbox has tapped into a niche but scalable market. Their aim is to digitize the surprise planning experience, making it easier to book curated experiences via app and AI tools -a smart blend of technology with emotion.
Why Outbox Strikes a Chord
In a world of generic gifting and mass-produced greetings, Outbox puts soul into celebration. They serve couples, families, friends, and companies — all united by one thing: the desire to surprise and be remembered.
Their story also reflects India’s growing appetite for experience-based gifting, a trend seen rising among millennials and Gen Z consumers.
Final Thoughts
Outbox is not just another startup; it’s a celebration catalyst. By showing India how beautiful a surprise can be when executed with love and intent, they’ve created a brand that people don’t just use — they remember. Their journey on Shark Tank India was more than a pitch; it was a reminder that in the age of fast tech, slow, heartfelt gestures still win.
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