Must I declare income from part-time employer on my tax return?

I am working with two employers (one full time and one part time). My full time employer deducts income tax on my income as per government rules but my second employer does not deduct the income tax and deposit the total income in my bank account. Now with my total income (income from full time employer plus from part time employer), there is some tax payable to government at the end of year. My questions are: (1) When submitting my annual income tax declaration (required by government of Pakistan), should I declare the amount received from my part time employer as my income? Will it be considered as lying if I do not declare this as my income? (2) Can I ask my part time employer to transfer my income to a bank account which belongs to my father? (As he is retired now so he will be paying a lesser amount of tax as compared to what I am currently paying). (3) In point 2, will my father be the owner of that amount? Do I still need to show this in my income tax statement?