Dikshit Kashyap Das

Product designer at BlackBuck.
Payments, web & internal tools.

01

Introducing new payment behaviour for FASTag Recharges

App · Split pay & autopay
PAYMENTS AROUND CUSTOMER CONTROL

More steps.
More control.

Adapting BlackBuck’s FASTag payment experience in response to an announced change in UPI pricing, with research shaping split-payment and autopay journeys.

Role
Product design & field research
Platform
BlackBuck mobile app
Explore the case study
TWO APPROACHES TO A LARGER RECHARGE
  1. 01Split payments
  2. 02Customer-authorised autopay

Research, design decisions and the trade-offs behind both journeys.

02

Integrating BBPS FASTag Recharges in BlackBuck's Ecosystem

App · BBPS
RECHARGING, WITHOUT THE DETOUR

The same truck.
A simpler recharge.

Bringing non-partner bank FASTag recharges into BlackBuck. Field research, a unified vehicle list and an approved departure from the standard biller-first flow.

Role
Research to regulatory approval
Platform
Android app
Explore the case study
A FLOW BUILT AROUND THE VEHICLE
  1. 01Enter the vehicle number
  2. 02Fetch the FASTag biller
  3. 03Review & recharge

The payment rail stays behind the experience.

03

Designing BlackBuck's own UPI

App · UPI
UPI ON A PPI WALLET

One wallet.
A whole new way to pay.

A complete UPI experience for fleet operators — from sending money to managing recurring payments. Designed around familiar behaviour, clear balances and the moments when things go wrong.

Role
Sole product designer
Platform
Android app
Explore the case study
BlackBuck Pay: the balance design evolved from three balances to a single UPI balanceBlackBuck Pay / A single, actionable balance

Ideas, questions, and things I’ve learnt while designing.

  1. MEDIUM 01

    Designing UPI on a Wallet

    Prioritising clarity over complexity — the decisions behind balance visibility, transaction states and autopay.

    Read note
  2. MEDIUM 02

    Designing Exception Roads in UI

    How a little deliberate friction can keep a useful fallback from becoming the default.

    Read note
01

Running

A little farther, each time.
GRIT MENTALITY

I like doing
hard things.

Running teaches me to keep showing up. That mentality follows me into design, and the rest of my life.

Bangalore UltraCompleted
Wipro Half MarathonCompleted
42.2 kmFull marathonIn training
Total kilometres in 2026—
Last run—
02

Illustrations

Made with love.
A PERSONAL PROJECT / ILLUSTRATION & STORYTELLING

The Adventures of
Deengoos and Spoingoos.

A book I made for the love of my life, for our fifth anniversary. Little stories from our life together, told through illustrations.

I’m Dikshit. I like making complicated things easier to use.

I design for people across India with very different relationships with technology — from confident app users to people still finding their way with digital payments.

At BlackBuck, that means spending time on the ground with drivers and fleet owners: listening to their concerns, watching how they use their phones, and understanding what makes a payment feel trustworthy. Those conversations shape the flows I design, the language I use, and the decisions I make across apps, web and internal tools.

EXPERIENCE
Nov 2024 — Present

Calypsu

Senior UX Designer

Nov 2022 — Oct 2024

From the field

Conversations that shape the work.

Reviewing a phone together inside a vehicle cab.
01 / In the cab
Three people seated together, reviewing a phone during a field conversation.
02 / Reviewing together
A group reviewing phones together beside parked trucks.
03 / On the ground
Commercial trucks parked together in a truck yard.
04 / The everyday context
A conversation beside a truck during a field visit.
05 / Listening first
The Adventures of Deengoos and SpoingoosA FIFTH-ANNIVERSARY GIFT

A little book, made for someone I love.

Drag a page to turn it, or use the arrows.
You can let your cursor wander.

Dikshit Kashyap Das.

SELECTED WORK / DIKSHIT KASHYAP DAS

A portfolio.
Fresh off the printer.