is TD deducted u/s 194J use as income from profession.

Yes, it can be declared u/s. 44ADA as 50% of gross receipts.

1. According to sec 44ADA, any person who is engaged in eligible business specified u/s 44AA can avail the presumptive taxation scheme u/s 44ADA. 
2. Sec 44ADA is a self-contained provision and it does not interfere with other provisions such as salary income, Capital gains and Income from other sources. 
3. So a person can avail the above scheme relating to his profession irrespective of his other heads of income. 
4. In your case, if you are engaged in eligible profession specified u/s 44AA, you can show 50% of your gross receipts as profit and free to show your salary income (Pension)  and any other income under their respective heads. 
5. Yes. ITR-4 should be filed. 
Please correct me if the above interpretation has an alternative view.