There are various requirements for filing a trademark application which are as follows:
Provide, name, address and nationality of the applicant.
If the applicant is a company, Certificate of incorporation and company’s PAN Card is mandatory.
If the applicant is a partnership firm, the names of all the partners are required.
A list of products or services for which registration is required.
Soft copy of the trademark to be registered.
Mark doesn’t contain non-English words, a translation of those words into English is necessary.
Date of first use of the trademark in India.
And at last, power of attorney should be signed by the applicant.