Relief for long delayed salaries paid in next fy till august

Request your Professional Opinion:

I received almost half of Net Salary for FY 2016-17 in FY 2017-18 from mid-April 2017 to mid-August 2017 due to long pendency of Salary Disbursements and TDS Deposit by Employer.  Likewise 85% of my entire TDS deducted each month in FY 2016-17 was deposited by Employer in late July 2017 into IT Dept Accounts; only 15% was deposted in FY 16-17 by Employer.

I quit the job and pursued employer for pending amount which was paid 4 months after quittinggg job in April 2017 that is by August 2017.  I am still looking for sutiable employment after this unprofessional and unpleasant experience.

Last Employer showed entire salary amount paid in FY106-17 and FY 2017-18 toward my salary for work in FY 2016-17 in Form-16 for FY 2016-17.

I filed my Returns by AUg 5, 2017 deadline and received acknowledment, which is yet to be sent to CPC in Bangalore.

Can I revise my return and Claim relief to shift the salary arrears paid in FY 2017-18 for my employment in FY 2016-17 so I can save some or most of Tax Amount dedcuted in 2016-17 as I search for suitable employment with a more quality-oriented employer?  What is the proper procedue to get this relief as I already e-fled returns and yet to submit Acknowledgment with Signature to verify return.

THANKS MUCH in advace.