Google updated its local search engine ranking factors / algorithm in past few days resulting into lot of changes in local search engine results both Google Maps and the local packs in web search.
It has happened after Google Maps GoogleBomb wrong results. It is not clear that it is related to the Google Maps Googlebomb algorithm update or not. But most of SEO forums and marketing community believers that it is due to Google Maps bomb fix.
”Building upon a key algorithmic change we developed for Google Search, we’ve started to update our ranking system to address the majority of these searches—this will gradually roll out globally and we’ll continue to refine our systems over time. Simply put, you shouldn’t see these kinds of results in Google Maps, and we’re taking steps to make sure you don’t.”
Googlebomb Fix is generally not used for Google Map listings rather it is for general search results. but the principle are same. I have tiried to make few search in Google.com and Google.co.in there are lot of changes seems to have happend