Confusion Over Cyber Law's "Intermediary" & "Hosting" Obligations

Yaar samajh nahi aaya. I'm stuck on this. In the IT Act, there's a huge distinction between the obligations of "intermediaries" and "hosts" under Section 79. But, honestly, it seems like both terms are being used interchangeably. An intermediary is defined as one who stores or merely transmits, but does not store, information. On the other hand, a host is defined as one who stores information, but merely transmits at the request of the third party. Now, if an intermediary is only liable for violating rules of Section 69A, but the same service provider also happens to store information (making it a host, technically), how does the law hold them accountable? It feels like a catch-22 situation. Please help me break this down.