Hi Sanjay, as we mentioned in our communication to you over email, IELTS exam is administered in India by two testing partners, the British Council and IDP: IELTS Australia, while a third partner, the University of Cambridge English for Speakers of Other Languages (Cambridge ESOL) is responsible for development of the test
IELTS has a rigorous test design, development and validation processes. These processes ensure that every version of the test is of a comparable level of difficulty, and that every test around the world provides valid and consistent results. Test writers from different English-speaking countries develop IELTS content so it reflects real-life situations around the world and is unbiased and fair to all test takers, whatever their background.
For more details you can refer to the link given below to get a fair idea about the scoring pattern:
https://www.ielts.org/ielts-for-organisations/ielts-scoring-in-detail
For any further queries, you can write to us at
examsfeedback@britishcouncil.org
Thanks,
British Council Team