Hi,
Yes, Form 10FA has to be filled for applying for a Tax Residency Certificate. The duly completed form has to submitted with your jurisdictional Assessing Officer, along with relevant documents. There are no prescribed set of documents, it is up to you on what documents should be filed along with it. On perusing the documents, the Assessing Officer will issue the Tax Residency Certificate. There is no prescribed time limit, it depends upon the complexity of your application and the follow-ups undertaken by you.
Basis on which the status of being resident in India is claimed:
In India, residential status for Tax purposes is based on the number of days you have stayed in India. Hence, you will have to attach copy of your passport to prove that you were in India for 182 days or more in India during the period for which you are applying for the certificate. If you were not in India for more than 182 days during that year, the alternate condition is staying in India for 60 days in that year or more AND 365 days or more during the 4 preceding years.
Trust this clarifies.
Regards,
Keerthiga Padmanabhan
M.Com., CA, LL.B