Sure …
She : You use Github . Tell me how Github works ?
Me : Github uses Merkel tree datastructure . It stores the previous versions of the work we do …etc
She : Nice , Why do you use github ?
Me : Just to keep all the DS & Algo at a place so that i can use them easily .
She : Good , tell me something about yourself ?
Me : Told …
She : What’s your recent memorable moment ?
Me : Shared my ACM ICPC experience …
She : Why are numpy’s so fast ?
Me : They are fast because they are built using C language .
She : Why can’t we use python list ?
Me : Python list is collection of pointers to the object . It can store heterogeneous
data .So , it does not have good locality of reference . So, we use numpy for fast computation and they also have advantage of SIMD parallel processing
She : Good Good , So how do you scale your self on programming languages
Me : Told in terms of [0-10] scale
She : What are decorators
Me : I don’t know ma’am [I was puzzled since that was the first time i am listening the word . She laughed 
]
She : Which sensor did you use in the project
Me : Told about Ultrasonic sensor and its purpose
She : I’ll give you 5 cases . You have to prove that your prototype handles all these cases
Me : Sure ma’am .[I was only able to justify 3 cases ]
She : Okay fine , tell me something about your Udacity machine learning Nanodegree program
Me : Told about the projects i did
She : How to remove Nan values from dataset
Me : Told about dropna , fillna etc
She : What is Data analytics .Give examples how Data analytics is important
Me : Told and justified it with IPL cricket score visualisation
She : Do you have any queries ?
Me : What about work-life balance
She : Told something …Still any doubts
Me : No ma’am , Thank you 
After 15 mins , they called me and said that i have been selected for SES role . Any ways , offer letter matters the most