A tagset is a list of part-of-speech tags (POS tags for short), i.e. labels used to indicate the part of speech and sometimes also other grammatical categories (case, tense, etc.) of each token in a text corpus.
Part-of-speech tagset for Indian Languages such as Bengali, Hindi, Kannada, Telugu, etc. created in terms of the Indian Language Machine Translation (ILMT) project comprising various Indian languages.
An Example of a tag in the CQL concordance search box: [tag="NN.*|NST"] finds all nouns, e.g. ಮೇಲೆ, ಬಗ್ಗೆ  (note: please make sure that you use straight double quotation marks)
Tagset
| PoS Tag | Description | Note/Example | 
|---|---|---|
| CC | Conjunction (co-ordinating and subordinating) | bole (Bangla) | 
| CL | Classifier | |
| DEM | Demonstrative | |
| ECH | Echo word | |
| INJ | Interjection | |
| INTF | Intensifier | |
| JJ | Adjective | |
| NEG | Negation | |
| NN | Noun | |
| NNP | Proper noun | |
| NST | Noun denoting spatial or temporal expressions | |
| PRP | Pronoun | |
| PSP | Postposition | |
| QC | Cardinal number | |
| QF | Quantifier | bahut, tho.DA, kam (Hindi) | 
| QO | Ordinal number | |
| RB | Adverb | *Only manner verb | 
| RDP | Reduplication | |
| RP | Particle | bhI, to, hI, jI, hA.N, na, | 
| SYM | Special symbol | |
| UNK | Unknown | |
| UT | Quotative | ani (Telugu), endru (Tamil), bole/mAne (Bangla), mhaNaje (Marathi), mAne (Hindi) | 
| VAUX | Verb Auxiliary | |
| VM | Verb Main | |
| WQ | Question Word | c | 
| *C (XC) | compound | where X is a variable of the type of the compound of which the current word is a member of | 
Source: crawled from Wayback Machine at http://ltrc.iiit.ac.in/tr031/posguidelines.pdf
Hindi part-of-speech tagset scheme in detail
Each PoS tag is composed of the main PoS tag written in capital letters (e.g. NN – noun) and five further categories separated by a dot providing detailed information about the particular token. Unused categories are replaced with a dot (e.g. NNP.unk.… – proper noun unknown).
For example, a noun tag NN.n.m.sg.3.d consists of the following categories and their values.
| category | value | description | 
| main PoS tag | NN | noun | 
| coarse PoS tag | n | noun | 
| gender | m | masculine | 
| number | sg | singular | 
| person | 3 | the third person | 
| case | d | direct | 
To find all possible main PoS tags, see the list above.
The list of coarse POS tags follows:
| value | description | 
| adj | adjective | 
| adv | adverb | 
| avy | avvya – indeclinable and some functional words, e.g. या | 
| n | noun | 
| num | numeral | 
| pn | pronoun | 
| psp | postposition | 
| punc | punctuation | 
| unk | unknown | 
| v | verb | 
The list of values of the gender category:
| value | description | 
| any | any gender | 
| f | feminine | 
| m | masculine | 
| n | neuter | 
| punc | punctuation | 
| . | not applicable | 
The list of values of the number category:
| value | description | 
| any | any number | 
| pl | plural | 
| sg | singular | 
| . | not applicable | 
The list of values of the person category:
| value | description | 
| any | any person | 
| 1 | the first person | 
| 2 | the second person | 
| 2h | the second person honorific | 
| 3 | the third person | 
| . | not applicable | 
The list of values of the case category:
| value | description | 
| any | any case | 
| d | direct | 
| o | oblique | 
| . | not applicable | 
Source: https://bitbucket.org/sivareddyg/hindi-part-of-speech-tagger/src/master/README.md
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