Dear Chandralal,
Awesome initiative for Bhutan!
You'll find all the information you need to build your plan in the WHO-UNICEF guidance note on how to develop a continuous improvement plan (also called cIP) here:
https://www.technet-21.org/en/library/explore/programme-management/4911-how-to-develop-a-continuous-improvement-plan-cip
The purpose of this document is to help countries build a case for supply chain investments and develop an improvement plan that engages relevant stakeholders, thus setting the immunization programme on a path for successful implementation.
Please let me know should you have any questions, and I can either help or relay them to cIP expert members. And good luck!
Best,
Olivia