hello sir/mam, i am aruna.i have done pg in arts . and want to do diploma coures in travel & tourisam but i dont know that whats qualification and duration of this coures.

Depending on the sector of hospitality there are different fields in which you can progress. In Travel & Tourism too there are various options for you.. Do your research in the field, come to a decision on the sector (Ticketing/Hotel/Travel etc etc) and then come up with a course beneficent for it.