@ Thomas John
I had mentioned when I started this thread that after prefillling data, the utility was insistent that I fill salary schedule, although I do not have anything for filling in S schedule.
Then I had tried your method. But the ghost ( joking of course) in the utility caught it and would not allow me to validate anything.
Hope it works for others.
If no pin code available, use 999999, this is as per advice of efiling portal