Difference between Curriculum Vitae, Resume and Bio Data

CV
1.Stands for Curriculum Vitae
2.Audience: Employers from companies related to your field of study as you apply for jobs or internships.
3.Goal: Demonstrate your academic achievements and scholarly potential, experiences and skills
4.Length: Atleast 1 page
5.Essential Information: Experiences, Technical proficiency, Achievements, Positions of responsibilities, extracurricular
6. References: Included

A CV is a preferred option for fresh graduates, people looking for a career change, and those applying for academic positions.

RESUME
1.Audience: A general audience; employers who hire for a wide variety of positions
2.Goal: Represent the skills and experience necessary to succeed in the position from all areas—job-related, volunteer, and extracurricular activities
3.Length: 1 to 2 pages
4.Essential Information: Only those skills and experiences which are relevant to the position you are seeking
5.References: Not included
 
Resume is more applicable for middle and senior level job where experiences and skill sets get more preference than academic qualifications.

BIODATA
A biodata is more like of a biography of a person i.e. one's work and life experiences.Here focus is given on the personal attributes such as name,age,height,weight,etc that describes the person best. It is mainly used for applying government and defense jobs or for any academic grants. It is also used for making profiles on matrimony websites. The word is commonly used in India.