TDS LESS CLAIMED IN ITR AND LESS REFLECTED IN 143(1)(a), THOUGH 26AS SHOWS RIGHT AMOUNT OF TDS

Nikunj (student) (30 Points)

13 March 2020  

There is 143(1)(a) is issued for a.y 2018-19.and after some time notice under section 245 is issued for same year. i download my X M L filed for that year and following details are found.
1. income from other sources i.e. interest from FD was not entered by me while filing said ITR
2. so TDS on above is also not claimed by me.
3. TDS on salary is also claimed in ITR is less than actually shown in 26AS and the same amount allowed by department to me in 143(1)(a)
4. there is tax paid by minor head 400 .

now when making right calculation I want to disclose the said interest of FD and want to claim TDS which is not claimed in ITR on such FD and remaining TDS on salary.
  What should I have to do right now?