google search console crawling my site another page, not the index page my website is live from one months. I have linked it with google analytics code and google search console. The problem is when am searching for my site name 'MustuGo' it's showing another pages link not index page. I already submitted http://www.mustugo.com/index.php in google search console in Fetch as Google. Am not getting why google crawl is not updating and not crawling index.php page.

Google ranks its results on tons of factors. Ultimately what it boils down to is how relevant is a particular web page to the search term.
I am guessing the reason for your problem is that you have not mentioned the word "MustuGo" in your home page. If you have the word, preferably in heading tags and meta-data, then that will make Google think that your home page is most relevant to the search term "MustuGo". 
Same applies for most of the search engines.