Yes, it means "Design(noun)"

Prarup means the following:
draft
format
outlay
prototype
sketch
version

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Note added at 9 mins (2014-07-24 16:36:11 GMT)
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Agree to the words suggested by Ashishji.

The literal meaning of prarup (प्रारूप -> प्रा (earlier) + रूप (form) is prototype or previous form. But it is used in Hindi for draft versions of documents, ie, that version that is not yet final.

For design, the dictionary term is अभिकल्प or अभिकल्पन. The verb form is अभिकल्पित करना. Often, design itself, written in Hindi script is used. But this is not a correct or desirable practice. The only problem in using प्रारूप for design, is that there is scope of confusion as your audience might think that it is still unfinished or incomplete, which may or may not be true. To avoid these issues, I suggest you use अभिकल्प (डिज़ाइन), that is, use अभिकल्प and in the first occurrence, give डिज़ाइन in brackets.

This word is used in Hindi in place of Draft, which is a letter or format of a letter prepared by subordinates. After approved by competent Officer, this draft becomes a letter. You can say Prarup Or Draft is the initial stage of a letter or format. After incorporating suggested amendments, it become a final letter.

The word प्रारूप alone cannot make complete sense when we discuss it in terms of Engineering/Architechture. If it is drawn on the paper, it is a 'Design' but if it means the basic structure or outline that has been marked/erected on earth, it will be a 'Layout'. 'Proto-type' is not a parallel for प्रारूप . It is basically used in mechanical and automobile engineering and it means the first real make of the design that has been put to trial. So conclusively, it is user to decide between 'design' and 'layout' because the context is not given here.