are we able to change the language information on order forms from English to Hindi?

Do you mean to display the form with two languages? If so, please refer to the guide that can help you in making multi-lingual forms.

http://www.jotform.com/help/298-How-to-make-your-forms-multilingual

If you are referring to something different or need any further assistance, please let us know. We will be happy to assist.