The Government of India Ministry of External Affairs web site gives full details of how, and where (and with all credit to RedBaron).
The Ministry of External Affairs attests original documents//true copies of documents for use abroad. Attestation done by the Ministry of External Affairs is of two types:
India, since 2005, is a member of the Hague Convention of October 5, 1961 that abolished the requirement of legalization of foreign public documents. Apostille is acceptable in 105 member-countries of the Convention (For more info please visit the website: www.hcch.net). Apostille is done for personal documents like birth/death/marriage certificates, Affidavits, Power of Attorney, etc. and educational documents like degree, diploma, matriculation and secondary level certificates etc. Any document Apostilled in one member country is acceptable in all the other 104 member-countries, signatory to the referred convention of 1961 thus greatly simplifying the process of attestation by making it needless to get the documents attested in each or for each of the countries separately.
2. Normal Attestation:
This is done for all the countries which are not a member of Hague Convention and where Apostille is not accepted.
Procedure for Attestation/Apostille
A. E-sanad: E-Sanad is a project aimed at online submission/verification of documents. CBSE Documents of years 2014 and onwards would be accepted through e-sanad only. The link for e-Sanad portal is : http://esanad.nic.in. Physical copy of CBSE documents of years 2014 and onwards would not be accepted for attestation / apostille after 5 June 2017.Further information can be obtained at this link:.pdf
B. Attestation/apostille of documents not covered under E-sanad:
Step 1 - Authentication of documents: All original documents/copies requiring attestation or Apostille should be first authenticated by the designated authorities of the State/Union Territory from where the document has been issued. In case of personal documents, Home/General Administration Department of the concerned State Government/Union Territory are the designated authorities. In case of educational documents, the documents should first be authenticated by the Education Department of the concerned State Government/Union Territory. Commercial Documents are to be pre-authenticated by the respective Chambers of Commerce. The details of the Regional Authentication Centres (RACs) in the States/Union Territories from where the documents should first be authenticated are given below*.
- What follows on the linked page is a comprehensive list of Regional Authentication Centres (RACs) for States/Union Territories, including twelve in Kerala, and five in Delhi.