More about Vishal Rewari

Vishal is a digital product growth expert and has worked with likes of Housing, Deloitte, McKinsey and on 25+ strategic projects and created an impact for $300M+. 

He currently runs firm Optiblack, a Product Growth firm, they are experts in designing, building and optimising digital products. His firm creates websites, mobile apps, SaaS and commerce solutions for ambitious organisations investing in growth and digital transformation. They do that by finding the sweetspot between business need and customer demand, fusing insight, creativity and technology to build products that create value. 

They are trusted to deliver by some of the world’s best-known brands.

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Featured speaker at previous eChai events:
eChai Startup Pickleball Night in Ahmedabad
Ahmedabad SaaS Meetup
Ahmedabad SaaS Meetup
Product Growth Meetup in Ahmedabad
Founders and startup folks who joined past eChai startup events

The eChai Effect - In Their Words

“I have no hesitation in saying that my association with eChai has been a gateway into the startup ecosystem. Through this platform, I’ve had the opportunity to connect with many young and dynamic entrepreneurs. These interactions have been immensely enriching - I’ve learned a great deal and have always tried to offer guidance whenever approached. It’s a truly symbiotic relationship that I deeply value, and it wouldn’t have been possible without eChai.”
Syed Nadeem Jafri - Founder, Hearty Mart
Syed Nadeem Jafri
Founder, Hearty Mart
"We found eChai to be a force multiplier throughout our startup journey. Through it, we connected with folks from DevX, Allevents, Plutomen, and more - many of whom became friends of IndiaBizForSale.com and even part of our clientele."
Bhavin S Bhagat - Co-founder of Indiabizforsale and IBGrid, TiE Ahmedabad President
Bhavin S Bhagat
Co-founder of Indiabizforsale and IBGrid, TiE Ahmedabad President
"eChai isn’t just a startup community … it’s a mindset . eChai has been one of the most impactful communities in my entrepreneurial journey. It’s been a turning point . In a world where building something can often feel isolating, eChai gave me a sense of belonging. I’ve found mentors, collaborators, and friends here — people who genuinely want to see you succeed. It’s a space where ideas are challenged, actions are celebrated, and founders grow not just in scale, but in clarity and confidence. From late-night ideas to early-morning pitches, this community has quietly but powerfully shaped the way I build, think, and dream. I’ll always be grateful for the way eChai creates spaces where founders don’t just grow businesses — they grow together."
Koumal Kalantry - Founder, Bignano Ventures
Koumal Kalantry
Founder, Bignano Ventures

eChai Partner Brands

eChai Ventures partners with select brands as their growth partner - working together to explore new ideas, open doors, and build momentum across the startup ecosystem.