'Index Indiana' is 

The Correct answer is An index to Indian language periodical literature.

Key Points

• Index Indiana was an ambitious project to trace the periodical literature appearing in Indian Language periodicals.
• It is being compiled by the Central Reference Library, Kolkata.
• The first issue of the Index Indiana appeared quarterly in 1977 and since 1981 it is being published as annual cumulated volumes.
• As a beginning 6 languages viz. Bengali, Hindi, Gujarati, Marathi, Tamil, and Malayalam periodicals are covered.
• Indexing articles pertaining to Indian Literature, Social Science, Indian Systems of Medicine, Folk literature, Social Science, Philosophy, etc.
• For science and technology etc. such publications are already available.
• Efforts are being to include all Indian languages.
• This index is divided into three parts –
  • classified part,
  • subject index, and
  • author index.
• The entries are grouped in the classified part according to the Dewey Decimal Classification system.
• The entries under the subject are further arranged by the author and wherever not available then by title
• .All the entries are serially numbered in the classified part.
• The subject and author indices are linked to these serial numbers.
• The experimental issue of October – December 2015 is available on the website in PDF format.