First of all, your concept is wrong. Google cache happens in every 5-7 days. Did you check when google cached your page? Please provide that information if you can. Your first description seems very targetive towards your keywords, I think you can use this as your description:

" provides information about Goa Tourism, Goa Tours and Travel, Goa Tour Packages, Beaches, Party and Hotels situated in Goa."

Remember, I am giving you this suggestion without analyzing your main targeted keywords.

Moreover, on page optimization helps 20% on SERP but it's mostly off page optimization which will help your keywords to get on the top of google.

You're using "Goa" too many times in both descriptions. Limit it to appearing only twice and see how that works out for you.

For starters - you shouldn't hurry - it really takes more time to not just index and cache it but also to stabilize the SERP position. The fact that it dropped suddenly might as well mean such readjustment and I would start counteracting in a week - if it doesn't get at least as good as it was.
Secondly, the old title was way better - just because it is more narrative, contextually close to a normal sentence than this old-fashioned "pipe" ( the "|" symbol is used and called as a "pipe" in Unix and Unix-alike command shells ).