Dear Niyata:
Good to read from you again. Regarding re-connecting with this old friend; You are worried she may not want to reconnect. This is why sending her a long email, like you are thinking of doing, is not a good idea. Not after eight long years. Instead, you can send her a short email, telling her a bit about your life in these eight years, telling her how fondly you remember her and your time with her in the past, and asking her how her life has been since.
A long email may overwhelm her, after all this time. A short email (a third of a page or so)- will be more inviting.
anita