Hey there, you have to be a citizen of Maharashtra for 15 years. 

• Certificate of age proof such as birth certificate, school certificate, etc.
• Document portraying the address such as ration card or driving license.
• Proof of residence.
• Self-declaration form.
• Two photographs of Voter ID/College or University ID.
• Duly filled application form.
• Proof of identity.
• Photocopies of all documents duly attested by a government official.
• An affidavit from tehsil or court.

You can continue online or from the sub magistrates office.

Hope this helps, all the best.