Hey Malavika,

CLAT actually is a common entrance test for law aspirants for admission in various courses offered by National Law Universities across the country as well as other prestigious institutions which take admission in UG/PG law courses like BA.LLB, BBA.LLB, LLB, LLM etc. 
NLUs take admission on the basis of CLAT score only while other private institutions like Symbiosis, Indraprastha University, New Law College, Bharati Vidyapeeth Deemed University etc. have their own entrance tests but they do take admission on the basis of CLAT scores as well. 
So from a law aspirant's point of view, CLAT is the most crucial exam which you definitely don't want to miss out on in any case.

Registration- You can online fill the form for CLAT and paying the registration fee of Rs. 4000
Examination mode- It was an online test earlier but this time, CLAT 2019 will be an offline test.

Duration- 2 hours

Exam paper pattern-
CLAT question paper comprises of 200 Multiple Choice Questions in case of undergraduate and 150 Multiple Choice Questions in case of Postgraduate course examination respectively, divided into 5 sections as mentioned below along with the number of questions and marks assigned to each section:-

For Undergraduate-

Legal Aptitude

Logical Reasoning

Elementary Mathematics (Including Numerical Ability)

General Knowledge and Current Affairs

For Postgraduate-

• Law of Torts

• Family Law

• Criminal Law

• International Law

• Property Law

• Jurisprudence

• Law of Contracts

• Intellectual Property Law

Section-wise distribution of marks for Undergraduate law programmes

1. English including Comprehension
    No. Of questions- 40
    Marks- 40

2. Legal Aptitude
    No. Of questions- 50
    Marks- 50

3. Logical Reasoning
    No. Of questions- 40
    Marks- 40

4. General Knowledge and Current Affairs
     No. Of questions- 50
     Marks- 50

5. Elementary Mathematics and Numerical
    Ability
    No. Of questions- 20
    Marks- 20

   TOTAL- 200

Section-wise distribution of marks for Postgraduate law programmes

1. Jurisprudence
    No. Of questions- 50
    Marks- 50

2. Constitutional Law
    No. Of questions- 50
    Marks- 50

3. Other Subjects
     No. Of questions- 50
     Marks- 50

Let me know if you need some other information.
Good Luck!!!

Common Law Admission Test (CLAT) is a centralised test for admission to 21 National Law Universities in India. The test is conducted by the 21 participating law schools in rotation. The test is taken after the higher secondary examination or the 12th grade for admission to integrated undergraduate programs in Law and after Graduation in Law for Master of Law (L.L.M) programs conducted by these law universities. The questions are asked from following topics: -

·         English including comprehension

·         General Knowledge and Current Affairs

·         Mathematics

·         Legal Aptitude

·         Logical Reasoning

Following private universities/ institutes also will accept CLAT, 2019 score: -

1. Shobhit University, Meerut
2. RNB Global University, Rajasthan
3. ISBR Law College, Bangalore
4. LLOYD Law College, Noida-201304.
5. Lovely Professional University, Punjab.
6. GLOCAL University, Saharanpur, U.P
7. Indore Institute of Law, Indore
8. Vivekananda Institute of Professional Studies, Delhi
9. Amity University, U.P.
10. Law College Dehradun
11. Alliance School of Law, Alliance University, Bangalore
12. Shri Vaishnav Institute of Law, Indore, M.P
13. Kalinga University, Naya Raipur, CG
14. ICFAI Law School, ICFAI University, Dehradun
15. Asian Law College, Noida
16. Siddharth Law College, Dehradun

I hope that serves your query. Regards.