TDS for the previous yr

Need clarification for the TDS claim which was notified for the back dated deopist after the maturity which was not captured in the Traces , how to file and claim for the previous yr and how many past years which we can claim. 

1)Claim tds for the previous yr via rectification of the ITR filed 
2)How to file >>Saw some steps mentioned as file through the it retrurn >>service >>rectification . 
using excel and json upload 

Can anyone guide on the matter with more clarity.