In three out of four seasons, temperature in India has increased by more than 1.5 °C since the beginning of 20th century.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/spiralling-temperature-seasonal-warming-trends-india
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/india-environment-portal
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science