A Private Limited company registration can have both the foreign and Indian Individuals as directors of the company. The documents that they required are nominally different from each other.
Furthermore, as for the shareholders of the company, their identity and the address proof would also be needed. Now, a shareholder can also be a corporate entity (a company in itself). To that end, you would need to attach their certificate of incorporation in the required documents as well.
When it comes to the matter of required documents, you can already guess the documents required for it are only slightly different. This difference is also emphasized in the manner in which the documents are to be used.
You can see that the caveats associated with foreign directors make a lot of the required documents quite a necessity. Make sure that if you are from a foreign land, you have access to the documents to make sure that your company is registered.
These are the documents that are needed prior to initiating the registration process. Accumulating the correct documents would follow through when the application is filled. Furthermore, it would also help with making sure the Registrar of Companies does not give you much trouble.