Learn English – which is correct “at the following” or “on the following”

Both are semantically correct as they are. But compare

I'll send it to you.

and

I'll send it you.

The second sentence wouldn't make sense in formal writing, but is found to be understandable in northern England spoken usage. There is also the case of

I'll send you this thing

Which flow much better without the to. In this light it might be more prudent to use send to you, as it is more formal, but send you in your context would also be accepted.

EDIT: I precised my conclusion and added one example following precisions made in the comments.

The first time I saw it was from an Indian colleague in 2009, and I've only ever seen it in emails or instant messages from Indian colleagues since.

An example:

The document is dated 25/06/08/ Is there any updation to the same?

Another:

could u tell me the command for executing the unit test from command line or any link or ppt .. for the same

As a British English speaker from the UK, I found it a bit strange at first, but I've got used to it now. However, I wouldn't advise using "the same" in this way as it might not be understood by people not familiar with it. Instead, when the context is clear, use a simple "it" or "them". If the context isn't clear, state explicitly what you mean.

So I would change your (updated) example:

I need the documents for the meeting. Could you please send me the same as soon as possible.

To:

I need the documents for the meeting. Please could you send them to me as soon as possible?

Also note the second sentence is a question, so ends with a question mark.