Hey @SoumyaB10469816,
Since you have 85000 Tweet IDs and just need to hydrate them, the Search API is likely not the proper product for you.
We have two endpoints that would work for this use case:
statuses/lookup
statuses/show
lookup will allow you to lookup multiple Tweet IDs separated by a comma, whereas show is a single Tweet at a time. Considering the volume of Tweets that you are working with, I recommend that you work with statuses/lookup.
Please let me know if you have any other questions!