Hi

Get the exemption Certificate and file along with the reply that you are exempted from these provisions. 

Thanks 

Yes 

Confirm the details with the certificate issuing authority 

Submission of ST income tax exemption certificate is must without which exemption in tax can not be availed.

You can apply for the same showing some valid reasons for delay. If certificate is issued you can claim refund of tax directly from the tax authorities.

You can file a writ petition in the High Court for claiming the Exemption certificate by citing the decision of the  high court most probably they will allow you petition if in any case they dont allow they you can file SLP in SC

Chances are bleak ..

You would not be entitled to income tax exemption as you have failed to furnish tax exemption certificate 

furnishing of tax exemption certificate is mandatory 

The exemption certificate is required to be furnished by 15 th June of every year to accounts section 

it cannot be done now 

Yes

This is for general information of all the s employees of North eastern states who are members
of Schedule Tribes (ST) only that henceforth exemption from paying income tax (TOS) shall be allowed only
to those ST employees who produce valid exemption certificate from the Assessing Officer of the Income Tax
Therefore,it is pertinent that the employees are required to obtain exemption certificate in terms of Section
197(1) of the Income Tax Act, 1961.
So you cannot avoid this situation, if at all you are planning to get the exemption under section 10(26) of the IT Act, you may have to furnish the exemption certificate as mandated in the law.

For availing this exemption the person must satisfy both of the following two conditions:

1. He must be a member of schedule tribe as defined by Article 366(25) of the Constitution of India and,

2. He should be residing any area in the states of Nagaland, Manipur, Tripura, Arunachal Pradesh, Mizoram or districts of North Cachar Hills, Mikir Hills, Khasi Hills, Jaintia Hills and Garo Hills or in the Ladakh region of the state of Jammu and Kashmir. When he starts residing at some other place for any reason, including transfer of employment, he loses the exemption.

You can apply for exemption certificate for the previous assessment year also on the above basis of the above eligibility conditions.

Apply for tax exemption.

Yes you can still file for exemption.

1. You have to pay tax for preceding years as you have not provided exemption certificate to your employer. 

2. No you cannot apply for exemption certificate for previous assessment years