Concept: IDRN stands for India Disaster Resource Network. It is an online resource inventory system used for disaster response planning and resource management.
Step 1: Understanding IDRN.
IDRN helps maintain details of resources such as equipment, supplies, vehicles, and skilled human resources available for disaster response.
\[
\text{IDRN} = \text{Online inventory for disaster resources}
\]
Step 2: Checking correct characteristics of IDRN.
District collectors or authorised district officials are involved in obtaining and updating data.
IDRN supports access to resource information.
It is a web-based inventory management platform for disaster-related resources.
Step 3: Finding the incorrect characteristic.
The statement that NIC is located at Bengaluru and hosts the online inventory is not a key characteristic of IDRN. The important point about IDRN is its web-based disaster resource inventory, not the given location statement.
Therefore, the correct answer is Option (C).