Hi Vijay,
Visit these:
ERP on HANA :
https://cookbook.experiencesaphana.com/erp/d62e56e8ac5840f2b198c0c905892407.html
CRM on HANA :
https://cookbook.experiencesaphana.com/crm/
These Cookbooks contains most of the information you might need and also have link to few important SAP notes.
They cover all aspects like Deployment, Upgrade, Migration
It covers most of the information like -
Preparation tasks to be done before Migration
Post Migration tasks