Max number of records in an Index

Hi

Is there any max limit of records(rows) in an index?
Crores of data rows can I add to an index?

Thanks
Aneesh

IIRC you have a hard limit of 2 billions per shard.
But I believe that might be a bad idea to have so many documents per shard though.

Why are you asking that? Is there something you want to solve?