Guides

60 data structures and algorithms interview questions grouped by pattern: arrays, two pointers, sliding window, hashing, linked lists, stacks, trees, graphs, heaps, binary search and dynamic programming. Each one comes with the key idea, complexity and a 4-week prep plan.

50 Power BI interview questions with clear answers and DAX examples: data modelling, Power Query, CALCULATE, time intelligence, row-level security, performance and scenario questions, plus a 7-day prep plan.

60 SQL interview questions with short answers and runnable queries, split into fresher, intermediate and experienced levels. Covers joins, GROUP BY, window functions, indexes, the classic second-highest-salary query and a 7-day prep plan.

40 Java 8 interview questions with code: lambdas, functional interfaces, method references, the Stream API (map, filter, reduce, groupingBy), Optional, default methods, the Date-Time API and CompletableFuture, plus the stream coding questions asked in Indian interviews.

6 LPA in-hand salary is about ₹42,600–₹45,000 a month under the new tax regime (zero tax). See the full CTC breakup, a sample payslip, old vs new regime, and who earns 6 LPA in India.

20 LPA in-hand salary is about ₹1,29,300–₹1,44,000 a month under the new tax regime (₹1,57,435 tax). See the full CTC breakup, a sample payslip, old vs new regime, and who earns 20 LPA in India.