In a finding that could help predict drought, farm scientists have noticed that deficit rainfall and drought follow a chronological pattern, repeating every 2.5 years in Telangana and Rayalaseema,
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/drought-occurs-every-25-years-icar-report
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-chronicle-hyderabad
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drought
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-council-agricultural-research-icar
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crops
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/monsoons
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rural-poverty
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/andhra-pradesh