Help & Transparency
Frequently Asked Questions
Detailed answers categorized by our digital PDF guides and 1-on-1 live mock interviews[cite: 1].
Interview Prep PDF Guides
All guides are 100% digital PDF documents[cite: 1]. You can download and read them on any device (laptop, tablet, iPad, or mobile phone)[cite: 1]. No physical shipment is involved[cite: 1].
Delivery is immediate and electronic[cite: 1]. As soon as your payment is processed on Razorpay, you receive instant download access on the confirmation screen, and a copy is sent to your registered email address[cite: 1].
We offer three discounted guides:
- 50 Most Asked DE Questions (Bestseller): ₹99 ₹349 (71% OFF)[cite: 1]. Covers PySpark transformations, joins, data skew handling, SQL windowing, and pipeline architecture[cite: 1].
- Databricks + GenAI 50 Questions (Newly Launched): ₹149 ₹499 (70% OFF)[cite: 1]. Covers RAG architectures, Vector DBs, LLM data ingestion, Delta Lake internals, and cluster tuning[cite: 1].
- 20 Scenario-Based DE Questions: ₹59 ₹199 (70% OFF)[cite: 1]. High-frequency business scenarios, complex analytical SQL, and window functions[cite: 1].
No. Each purchase grants a single-user personal license[cite: 1]. Redistribution, sharing, reselling, or uploading to public Google Drives or GitHub repositories is strictly prohibited[cite: 1].
1:1 Live Mock Interview & Evaluation
The session is priced at ₹499 (discounted from ₹1,499) and divided into two focused parts[cite: 1]:
- First 30 Minutes: Realistic technical interview round covering scenario problems, SQL queries, PySpark optimization, and pipeline design tailored to your experience[cite: 1].
- Next 15 Minutes: In-depth evaluation debrief. Muskan details exactly where you answered well, where you hesitated or lacked depth, and how to structure your answers for maximum impact.
Yes! You can reschedule your mock interview session up to 2 times.
To reschedule, you must send an email to muskan.singhal.de@gmail.com at least 24 hours in advance of your scheduled time[cite: 1]. Due to reserved calendar slots, requests made with less than 24 hours notice cannot be rescheduled.
Simply click the “Book Session via Email” button on the homepage or email muskan.singhal.de@gmail.com[cite: 1]. Mention your years of experience, target role, and preferred time slots. We will reply within 24 hours with calendar availability and confirmation[cite: 1].
Refund & Cancellation Policy
Strict No Refund Policy: Because all interview preparation guides are digital, instantly downloadable PDF files, all sales are final and strictly non-refundable once payment is completed[cite: 1].
For 1:1 Live Mock Interview sessions (₹499), slots are strictly non-refundable once booked. However, you can reschedule your session up to 2 times with at least 24 hours advance notice via email[cite: 1].
Start Your Interview Preparation
Grab your discounted interview guide starting at ₹59 or book your 1-on-1 personalized mock interview round[cite: 1].