Removing highcharts.com credits link and Add title to Chart.?

Hello Kumar, 
Thank you for writing. Please find the example of setting the title for charts here - https://jsfiddle.net/flexmonster/tuhnwwcn/15/. In case you need to set other properties then visit Highcharts documentation page - https://www.highcharts.com/docs. Speaking about removing Highcharts credits link, it may be necessary to obtain the license. Please contact Highcharts for more information.
Let us know if the information above was helpful for you.
Regards,
Dmytro