Top 47
Prep plan
Updated weekly · Last refresh Oct 17

Kotak Mahindra Bank Data Scientist Interview Questions

The questions to prepare for a Kotak Mahindra Bank Data Scientist interview. Questions from real interview reports rank first. Updated daily.

47questions
~7htotal time
Track your progressSign up free to work through all 47 questions and resume where you left off.
Start practicing free →
1
System DesignStart here. 7 questions · ~63 min
2
Machine Learning8 questions · ~71 min
Regularization PurposeMedium

Explain regularization, its role in controlling overfitting, and how to apply and evaluate L1 and L2 penalties.

Bias-Variance TradeoffRegularizationGradient DescentKotak Mahindra Bank
More Machine Learning questions with a free account
3
A/B Testing & Experimentation4 questions · ~36 min
Stratified Sampling in ExperimentsHard

Explain stratified sampling, when to use it in experiments, and how it affects allocation, power, and analysis.

experiment designMDEprimary metricsKotak Mahindra Bank
More A/B Testing & Experimentation questions with a free account
4
Model Evaluation4 questions · ~36 min
Explain the Bias-Variance Trade-offMedium

Explain how the bias-variance trade-off affects model evaluation and why it matters when comparing models.

PrecisionAccuracyRecallKotak Mahindra Bank
More Model Evaluation questions with a free account
5
SQL & Data Manipulation4 questions + 1 drill · ~46 min
Use Window FunctionsMedium
Practice

Demonstrate window functions by ranking active employees by salary within each department.

Window FunctionsData ManipulationRankingKotak Mahindra Bank
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
More SQL & Data Manipulation questions with a free account
6
Statistics & Probability6 questions · ~54 min
Accuracy and Reliability in AnalysisEasy

Explain how to validate data quality and statistical reliability before trusting analysis results.

Confidence IntervalsHypothesis TestingStatistical SignificanceKotak Mahindra Bank
More Statistics & Probability questions with a free account
7
More topics14 questions · ~125 min
Discounting and ProfitabilityMedium

Assess whether discounts create incremental profit after accounting for margin loss, volume uplift, cannibalization, and customer quality.

KPIsdiagnostic processactionable insightsKotak Mahindra Bank
Real-Time Dashboard Data PipelineMedium

Design a streaming pipeline that keeps dashboard data fresh and accurate for operational reporting.

InfrastructureStream ProcessingOrchestrationKotak Mahindra Bank
More questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
The finish line: interview-readyComplete all 47 questions plus 1 hands-on drill to finish this plan.