hi...everyone. iam new to the salesforce course.please help me to improve myself to crack the salesforce administrator exam.

Refer to this: 

• https://trailhead.salesforce.com/content/learn/trails/administrator-certification-prep
• https://trailhead.salesforce.com/users/strailhead/trailmixes/prepare-for-your-salesforce-administrator-credential

Hi Sudha, definitely start with what Tushar has provided. As some additional prep, I personally would recommend doing the practice exams. There is one on SalesforceBen and Focus on Force is also a great resource if you want to prepare yourself further with practice tests

Thank You Tushar for providing these, I am also new to Salesforce and learning admin.