Hello @Aiswarya Lakshmy - I'm looking into this issue. Per the screenshot that you've posted, I see that you've both Cosmos trigger and Table input binding in the function signature - are you looking to trigger the function upon a new insert in the Table storage? If that's the case, the Change Feed in CosmosDB, which the Cosmos trigger in Functions is based on, doesn't seem it supports Table API: Supported APIs and client SDKs
If I misunderstand, please let me know and I'll ask my peers who work on Azure SDK support.