For companies like Thought-Works start preparing on subjects like DS , Algorithms , OS , Networking , Java , C and main thing clear your OOPS concepts which is must and required.

FIrst Round

It can be Flow Chart question (search on google ) or rapid coding questions.

After clearing 1st round.

Second Round

90 mins Coding round which must be solved using OOPS concept. Few Famous question which are asked most frequently :-

1. Sales Tax Problem

2. Mars Rover Problem

3. IPOD Inventory

All above problem statements are available on net with solutions.

After clearly the above rounds then comes interview. Total 4-5 interviews are held , Following are list of question of each interview.

Technical interview 1

1. Which language u prefer c or java? Why?
2. Questions on project
3. Write code for merge sort and simulate on array?
4. Questions on collections java and implementation
5. Explain Sudoku backtracking algorithm
6. Design rat in maze problem in oops
7. Design fan in oops
8. Questions on hashing
9. Osi model and function of each layer with some examples
10. Database normalization explain 2nf 3nf bcnf with examples
11. Schema design for students course and department and asked to write some queries

Technical interview 2

1. Features of java and when to use c instead of java
2. Write code to reverse doubly linked list and simulate with examples
3. Create tree form 2 traversals
4. Code to detect loop in linked list and solution to remove it
5. What happens when u type google.com
6. Design student subjects schema
7. Questions on Array and Linked list and their usage
8. Questions on implementation of Collections
9. Questions on garbage collector in java
10. Some questions on project
11. Code for finding tree height ,diameter

Interview on leadership

1. Started with introduction
2. Questions on hobby
3. then on coding why do u like coding
4. design internal email system for thoughtworks
5. questions on complexity of algorithms
6. questions on thoughtworks
7. tell some negative points of thoughtworks
8. then given 3 points 1 leadership 2 hard work 3 helped someone he gave me 5 minutes to think

Interview on three pillars of thoughtworks

1. Started with introduction
2. Asked some questions events I managed
3. Asked current affairs
4. Asked Opinion on caste based reservation ,
5. suicide of farmers and solution to these problem
6. responsibility towards society
7. what is goal and career objective

Click here to read my ThoughtWorks Interview Experience