I applied through college or university. The process took 1 week.

For DSA preparation, Striver A2Z DSA sheet is a must. Focus on problems like:

• LRU Cache - LeetCode (asked in OA)
• LFU Cache - LeetCode
• Decode String - LeetCode (asked in technical round interview)

Focus on remembering the facts and metrics related to your projects and previous works. I was asked about exact figures like efficiency and performance metrics in one of my optimisation projects, including the number of requests before and after my optimisation. For AI/ML projects, remember things like the model used, parameters, accuracy or mean error, and the activation function used along with the reason behind using it.