There is no reason to say 'grow up', you are now in same situation when Pakistanis were few days ago when India was pointing towards Pakistan without any evidence *(any evidence showed up much later), * I'm sure if our security forces are claiming her to be Indian then it is very likely right. Everybody knows such claims will be scrutinised by world media now so they can't just make things up esp in the current circumstances. You and I don't have the information how they came to conclusion of her being an Indian spy but border security areas have much more knowledge and skills then we do. May be you can ask Indian govt/media to look into the claims and demand "proof". We do know Indian agencies are "busy" in Pak-Afghan borders esp to support Baloch uprising.
You also agree that some evidence showed up. The point is that these guys would know which direction the investigation is taking. Hence they made the statement. Now it is very much established that the captured terrorist is indeed from Paksitan. Please watch Geo TV...