Hello Nadesan

No , diploma holders in pharmacy can not use prefix

" Dr " with their names .

People today are using this prefix to differentiate them from others but yet officially it is not approved by pharmacy council of India  to use Dr before their name.

In foreign countries people with pharmaceutical field and diploma holders use prefix Dr with their names.

Pharmacists can use prefix Drx which means Drug expert , it is to show that they are having valid license and is registered.

D pharm is a two years diploma Course in pharmacy .

To be a registered pharmacists it us a minimum qualification . It deals with drugs ,their synthesis , usez and formulations etc.

To know more about D pharm course  you may refer link given below.

https://www.careers360.com/courses/d-pharm-diploma-in-pharmacy