I know that one of the reasons, at least formally, for the invasion of Egypt was to 'link up' with Indian Princes aligned against the English and drive them out of the continent, but exactly how did the French intend to get there (if it was even thought about)? Overland through the Ottomans and Persia and hope the Persians were friendly? Conquer them too? Or did they intend to somehow build a fleet on the opposite side of the Suez? The only other solution I can think of is an early Suez Canal but that would take a considerable amount of time.
There's more to be said about Napoleon's plans for India, but it's worth pointing out that this was a vague and secondary objective of the Egyptian campaign, which had more to do with Napoleon's political goals than strategic objectives, as I've discussed in this previous answer.