The Data Foundry

Built by Data with Pranjal

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Unlock deeper interview practice.

Start free, then upgrade when you want the full scenario library, advanced debugging labs, project simulator depth, and stronger interview framing.

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Free

Rs 0

Start with 116 free labs and learn the complete attempt-feedback flow.

Selected free SQL, PySpark, and scenario labs
Basic hints and feedback on starter labs
Progress tracking on this device
Starter roadmap and interview practice
Start free

Premium

Rs 500/year

Rs 1999

Best value

Best for serious interview prep and production-style depth.

380+ premium labs and production scenarios
Full scenario library across SQL, PySpark, Airflow, AWS, and data quality
Advanced labs, model answers, follow-ups, and interview framing
Advanced system design cases and complete progress dashboard
Detailed model answers, follow-ups, and production explanations
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Questions

Before you unlock

How does UPI activation work?

Choose a plan, scan the UPI QR, and submit the payment reference. Access is activated after the payment is verified.

How long does access last?

Annual access lasts 12 months from activation. Monthly access lasts one month from activation.

When will my access be activated?

Most payments are reviewed within 24 hours. Keep the UPI reference so support can locate the payment quickly.

How do coupon codes work?

Choose your plan, enter the coupon in the UPI checkout, and select Apply coupon. Pay only the discounted amount shown after the coupon is verified.

What is the refund policy?

If activation cannot be completed, contact support with your payment reference. Refund and access requests are reviewed individually during this early-access period.

Need activation help? Contact the Data with Pranjal support channel with your registered email and UPI reference.