Certificate

You can give up state caste certificate in JoSAA counselling but your caste should be in center list and your caste certificate should be central.

Yes, you must directly meet with counselor and put your problem in front of them, they will surely suggest you a better alternative. Good luck.

For it, you can submit a copy of 9th class certificate on bonafied letter of your school which is duly signed by principal of the school.

Hi,
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You do not need Englisg speaking certificate to work abroad in general. Unless you are interested in teaching english job abroad to non natives then I would recommend TESOL or TEFL or IELTS certificate.

Sorry, I didn't get your question.

You can always do a certificate course.

Hi Devineni, I do not think it should be a problem. EWS Certificate only helps in getting admission through reserved quota.