Please visit: https://bitbucket.org/dhakadgourav/language-identification
The paper on the implementation is IIT (BHU) System for Indo-Aryan Language Identification (ILI) at VarDial 2018
https://www.aclweb.org/anthology/W18-3921 and http://web.science.mq.edu.au/~smalmasi/vardial5/pdf/W18-3921.pdf
Bibtex-
@inproceedings{gupta2018iit,
title={IIT (BHU) System for Indo-Aryan language identification (ILI) at VarDial 2018},
author={Gupta, Divyanshu and Dhakad, Gourav and Gupta, Jayprakash and Singh, Anil Kumar},
booktitle={Proceedings of the Fifth Workshop on NLP for Similar Languages, Varieties and Dialects (VarDial 2018)},
pages={185--190},
year={2018}
}