Calculation if switching to proprietorship after getting salary for 3 months

Sir/Madam

in SAME financial year

I received salary for 3 months = Rs X and Rs Y has been paid a TDS already

Remaining 9 months I was a proprietor receipts were Rs A and expense were Rs B.. it was a loss. i.e B is greater than A

Option 1

Now should I calculate my income as below i.e Rs A + Rs X (salary) - Rs B = income

If I calculate like that the tax liability is less than then TDS amount i.e  Rs Y. Can I claim refund?

Please note RsY was paid by my employer considering 3 months salary

Option 2

Should I declare my salary income Rs X under a different head in ITR

If so my tax liability is very high even though I suffered a huge loss in business

Which option should I choose?

Which form should I use? 

Shanthi