Yesterday before leaving for India, X17online spotted Lindsay Lohan at an office building in Beverly Hills with none other than rumored hook-up Cash Warren!

Now, we hear that rumor is bunk -- plus, photogs on the scene say this was strictly business. "Lindsay and Cash went to the meeting together, but they left separately," an X17 photographer tells us. "Lindsay looked as business-y as Lindsay gets. It's not like they were trying to sneak in a quickie in the middle of an office building in Beverly Hills!"

Lindz has already said the pair is working on a project together. And why would she want to jeopardize her new relationship with Jason Segel for a little afternoon delight with a married man?