It is working fine now.
Problem was with file name extension, I've created data file(sample_data) using notepad that appends .txt in file name. I am from Unix background, so mostly used vi editor. silly mistake 
sorry for chaos.
Cheers,
Abhishek
It is working fine now.
Problem was with file name extension, I've created data file(sample_data) using notepad that appends .txt in file name. I am from Unix background, so mostly used vi editor. silly mistake
sorry for chaos.
Cheers,
Abhishek
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