Years of experience : 1yr [Service Based]
Leetcode has been a great source for all these preparation , thus giving it back to the community by sharing my interview experiences.

PayPal
There were 2 technical rounds and 1 managerial round :
1st Round : [DS Algo]
2 questions were asked.
One was related to fibonacci sequence.
2nd was https://leetcode.com/problems/alien-dictionary/
2nd Round : [DS Algo]
2 Easy-Medium problems were asked related stl map/set
1 Linked List standard problem : Josephus Problem
Few questions related to databases were asked.
3rd Round : [Behavioral]
Normal Behavioral questions were asked.
Only few questions related to project was asked.

Razorpay
There were 3 technical rounds :
1st Round : [DS Algo]
1 - Problem related to xor and set.
2 - https://leetcode.com/problems/find-peak-element/
2nd Round : [Machine Coding]
Design a in-memory search engine.
Search Engine can have different datasets and datasets have different documents.
Some of the functions required were :
a - CreateDataset
b - InsertDocument
c - SearchDocument : On the basis of most occurance/most recent
3rd Round : [Managerial]
This round was the toughest among the three.
Started with : https://leetcode.com/problems/maximal-square/
then , https://leetcode.com/problems/maximal-rectangle/
Then there were lots of discussions on topics like :
sql , indexing , dns , Dynamodb(used in my project) , hashmaps, http v/s https,
ssl , encryption , b-trees

Nurture.farm
There were 3 technical rounds and 1 HR round :
1st Round : [DS Algo]
2 complete unique easy-medium questions were asked.
topics : string,recursion,stl
2nd Round : [Machine Coding]
Design a E-Commerce Backend.
some of the required features :
a - User Login/SignIn
b - View Cart / Add to Cart / Save Cart
c - CheckOut
3rd Round : [ Managerial / System Design]
Started with questions on my projects.
Grilled on topics like elastic search , jwt tokens , encryptions[Public/Private keys]
System Design Problem : Design a Group Messenger feature.
Discussions went for around 40 mins on topics like load balancers, consistent hashing , database design , Long Pooling , user-internet-off situation.
4th Round : [HR]
Lots of Behavioral questions were asked.

Verdict : Selected in all 3
In couple of rounds I thought I gave just 60-70% , but luckily I went through.