After 12th Board Exams eligible for Maths Olympiad or not

Am I eligible to apply Indian National Mathematical Olympiad (INMO) after passing 12th ?

[Quick Sam]

After passing 12th you are not eligible to apply Indian National Mathematical Olympiad (INMO)

The Indian National Mathematical Olympiad (INMO) is a high school mathematics competition conducted by the Homi Bhaba Centre for Science Education (HBCSE) under the aegis of the National Board of Higher Mathematics (NBHM).

Eligibility :
Class 1 to 12th grade students can apply for this examination

All India Schools Mathematics Teachers Association (AISMTA) is conducting National Mathematics Olympiad Contest at eleven levels as mentioned below:
LEVEL
CLASS
1. NURSERY
I
2. PRE-PREP OLYMPIAD
II
3. PREP OLYMPIAD
III
4. PRE-PRELIMINARY OLYMPIAD
IV
5. PRELIMINARY OLYMPIAD
V
6. PRIMARY OLYMPIAD
VI
7. FIRST OLYMPIAD
VII
8. PRE-JUNIOR OLYMPIAD
VIII
9. JUNIOR OLYMPIAD
IX
10. INTERMEDIATE OLYMPIADX
11. SENIOR OLYMPIAD XI – XII

The International Mathematics Olympiad is conducted in two levels:

Level 1: The first level of the test is organized in the respective schools of the participants during school hours.

(i) The level 1 competition is a written objective-type test of 60 minutes duration comprising 35 objective-type (Multiple Choice) questions for class 2 to class 4 and 50 objective-type (Multiple Choice) questions for class 5 to class 12.

(ii) The question paper consists of:
(a) Logical Reasoning (b) Mathematical Reasoning (c) Everyday Mathematics (d) Achiever's Section
(iii) There are separate question papers for each class.
(iv) The medium of the test is English.
(v) CBSE, ICSE/ISC and State Board syllabus is followed for setting the test papers.
(vi) The exam is conducted during school hours.