Tds under sec 194J doesnt mean it is a professional service just in case you are understanding like that. An HUF cannot provide specialized professional services as a professional like doctor, lawyer is HUF individual holding professional certificate and the services are dependent on the individual and not the HUF.
Some services are personalized services.Some services may not be personalized service. Ttarget='_blank' rel='nofollow' hrefore, income from personalized service can not be attributed to HUF income. Sevices of doctor are in the nature of personalized services. I think you can not apportion you income to HUF income. However, a clinic may be run by HUF. From the income of the clinic/hospital you may draw some amount towards your personalized service. The income of clinic/hospital own by HUF would continue to be taxed in the hands of HUF.