A decade ofbuilding with data
From cracking algorithms at IIT to shipping GenAI products at scale — here's the story.
10yr
Experience
6
Patents
8
Competitions
Hover any role to reveal a career milestone
Director Data Scientist
Mastercard AI Garage
2022 — now
- Know Your Transaction — GenAI product that explains complex data insights and model decisions in natural language, with input/output guardrails for safety.
- LLM Security Suite — comprehensive suite to assess LLM vulnerabilities via adversarial prompts, with mitigation recommendations.
- Agentic Commerce — built an agentic shopping experience from scratch with multilingual and voice-based features.
- Dynamic Decisioning Service — AI approval engine mirroring issuer-specific transaction behaviour using Graph Neural Networks.
- Dispute & Chargeback Reduction — predictive models using Boosting and GNN to proactively minimise transaction disputes.
GenAI · LLM Security · Agentic · GNN
Senior Data Scientist
Aera Technology
2020 — 22
- Smart Skill — self-learning supply chain recommendations using contextual bandit algorithms (ε-greedy, UCB, Thompson Sampling) with off-policy evaluation.
- Demand Forecast — ensembled time-series models (Croston, Exponential Smoothing, THETA, ARMA) for a chemical industry client using ABC-XYZ segmentation.
- Inventory Forecast — on-hand inventory prediction for a pharma client using Random Forest & XGBoost with SHAP for explainability.
RL · Supply Chain · Forecasting
Analytics Manager
Piramal Financial Services
2018 — 20
- Account Monitoring — deployed delinquency prediction model using Random Forest with ADASYN oversampling, monitored via PSI and GINI stability.
- Risk Analytics — built underwriting models and reject inferencing framework with Experian; PowerBI dashboards for senior management.
- Customer Journey Analytics — ran in-house SEM campaigns; used K-means on bureau data to segment leads by risk profile and loan propensity.
FinTech · Risk · Marketing
PGDBA — Data Science
IIM Calcutta · IIT Kharagpur · ISI Kolkata
2016 — 18
Completed India's only triple-institute Data Science postgrad with a GPA of 8.51/10 — a rigorous programme spanning business strategy at IIM-C, engineering sciences at IIT-KGP, and statistical theory at ISI.
Postgrad
Business Consultant
Fractal Analytics
2015 — 16
Tracked pricing & promotions for 66 brands, 200+ products at a Fortune 100 CPG firm. Formulated proposals that added $6M revenue through analytical solutions for two insurance clients.
Analytics · CPG · Insurance
B.Tech (Honours)
IIT (BHU), Varanasi
2011 — 15
Graduated with GPA 8.09/10 and organised events as Event Manager of the Entrepreneurship Cell — building the foundations in mathematics, algorithms, and systems thinking.
Foundation
Jailbreaking LLMs by Inverting Intent of Query
Mastercard · P14273-US-UTIL
US Patent
A novel adversarial technique for surfacing LLM vulnerabilities by semantically inverting the intent of a query — the core of the LLM Security Suite built at Mastercard AI Garage.
LLM Security · Adversarial AI
Methods and Systems for Prompts Related to Financial Events
Mastercard · P12849-US-UTIL
US Patent
Structured prompting systems that generate natural language explanations of complex financial events — core to the Know Your Transaction GenAI product.
GenAI · FinTech · Explainability
Intelligent Payment Management to Mitigate Over-Credit-Limit Risks
Mastercard · P13984-IN-UTIL
IN Patent
AI-driven decisioning for transactions approaching credit limits — part of the Dynamic Decisioning Service leveraging Graph Neural Networks.
GNN · Payments · Risk
AI Methods and Systems for Resolving Chargeback Disputes
Mastercard · P12514-IN-UTIL
IN Patent
Predictive models using boosting and GNN to proactively identify and resolve dispute scenarios before they escalate to full chargebacks.
GNN · Dispute Resolution
Methods for Assigning Chargeback Liability to an Entity
Mastercard · P12130-IN-UTIL
IN Patent
Intelligently attributes chargeback liability across the payment chain using AI-based behavioural pattern analysis.
Payments · Liability Attribution
Systems for Leveraging Data Aggregation to Define Actionable Insights
Mastercard · VAN14772-IN-PROV
IN Provisional
Framework aggregating multi-source data signals to surface actionable insights — enabling smarter stand-in decisioning during issuer unavailability.
Data Aggregation · Decisioning
FgenXAI: A GenAI Framework for Explainable Financial Records
KDD Workshop · Publication
Paper
Published at KDD — presents a generative AI framework for producing human-readable explanations of financial records, bridging model transparency and regulatory compliance.
KDD · XAI · FinTech
LLMs: You Can't Please Them All
Kaggle
2025 · Gold
Gold medal on a competition focused on aligning LLM outputs to diverse, conflicting human preferences — directly tied to production GenAI safety work.
Kaggle Gold · LLM Alignment
Jigsaw: Agile Community Rules Classification
Kaggle
2025 · Silver
Silver medal classifying community content against evolving policy rules — a real-world challenge of keeping AI moderation adaptive and fair.
NLP · Content Moderation
Competition for LLM and Agent Safety
NeurIPS
2024 · Rank 2
Global Rank 2 at NeurIPS 2024's flagship safety competition — evaluated on robustness against adversarial prompts, jailbreaks, and unsafe instruction-following.
NeurIPS · LLM Safety · Global #2
Fraud Model Optimization
Mastercard Internal Hackathon
2023 · Rank 3
Placed 3rd in Mastercard's internal competition on fraud detection optimisation — applied GNN and boosting approaches to transaction graph analysis.
Fraud Detection · GNN
Smart India Hackathon
Govt. of India — MHRD
2017 · Silver
National-level hackathon by India's Ministry of Human Resource Development — silver medal building a data-driven civic solution.
Civic Tech · National
The Analytics Challenge
NASSCOM
2016 · Rank 3 / 143
3rd out of 143 competing teams in NASSCOM's industry analytics challenge — one of the first signals that data science was the right path.
Analytics · NASSCOM
Indian Case Challenge
IIT Kharagpur
2014 · Top 10 / 600+
Top 10 out of 600+ teams — the competition that first sparked the journey toward data science and analytical problem-solving.
Case Competition · IIT KGP
EXL Case Quotient
EXL Analytics
2014 · Top 30 / 735
Top 30 out of 735 teams in EXL's analytics case competition — an early validation of structured analytical thinking under pressure.
Analytics · EXL