HELLO, SUJATA DAS FROM INDIA.
@Sujata_Das28 Welcome to Esri Community. You can find many helpful resources and people here. Here are a few places to get started:
Products - Esri Community
Industries - Esri Community
Developers - Esri Community
Learning - Esri Community (Learn ArcGIS, Esri Press)
Services - Esri Community (Training, Certification, My Esri...)
Cheers,
