The 'Hindi word of the year' campaign is similar to the immensely popular English word of the year campaign. Hindi is the only language, other than English, for which this is being done.
Kritika is also involved with Oxford University Press in the capacity of "Language Champion". She is their only multi-lingual language champion involved in 4 Indian languages - Hindi, Urdu, Tamil, and Gujarati.
To submit a suggestion for word of the year you can go to the Oxford Global Languages' Hindi Dictionary website.