Analysis of information sources in references of the Wikipedia article "ग़ाज़ियाबाद" in Hindi language version.
... Khari Boli is spoken as mother-tongue in the following areas: (1) East of the Ganges, in the districts of Rampur, Bijnor and Moradabad,Bareilly, (2) between the Ganges and the Jamuna, in the districts of Meerut, Muzaffar Nagar, Azamgarh, Varanasi, May, Saharanpur and in the plain district of Dehradun, and (3) West of the Jamuna, in the urban areas of Delhi and Karnal and the eastern part of Ambala district ...