
Kaustav Chakrabarty
Rhythm guitar · Backing vocals · Founding member
Kolkata-born, 1982. Kaustav didn't chase music so much as inherit it — his father put Mohd. Rafi in his ears before he ever touched a guitar, and that's still the root of everything he plays. College cracked the door open wider: western classical, early jazz, swing — a taste that quietly explains why his rhythm work never sits still.
Long before Zero-3-3, there was St. Louis, Missouri — where Kaustav teamed up with friends on The Rusty Strings, a genuinely polished production: professional studios, rented equipment, high-production-value videos, the works, all under a dedicated production house. Then came Montreal, where he, Rajarshi, and Arijit connected over that same shared love of music — casual jamming that grew, session by session, into a real band with a real mission: bringing South Asian music to the city's stages. Kaustav was there from the very first note.
By day, he's a service delivery manager at Morgan Stanley Montreal — all precision and calm under pressure, which might explain a lot about how he holds a band together. Somewhere in between, he cut his teeth with Procheshta in 2019 on rhythm guitar and backing vocals, then turned COVID lockdown into a launchpad — building a home studio and scoring background music for short films.
That studio didn't stay a solo project. It's now Zero-3-3's rehearsal space — the band jams out of his house. He's also the one behind the camera and the editing timeline, cutting content for the band's socials alongside Sukanya, and quietly geeking out on sound sampling and production software to get their covers sounding just right.
On stage, watch for the tell: mid-song, he throws a small smirk around the group — a silent "we good?" to the rest of the band. Nobody handed him the leadership. He just never stopped checking in, and somewhere along the way that became the job.
Off stage: father to a 13-year-old, Saint-Constant local, and currently president of the Indian Bengali Association of Montreal.


