I run this website www.chalopicnic.com and My development team recently changed the url structure to include hyphen which originally had underscore. This is resulting in NOT FOUND in search engines.
For example when "jet skiing in Mumbai" is searched on Google, the 5th result is
http://chalopicnic.com/more_info.php?tid=373
The change done to the above link is the hyphen
http://chalopicnic.com/more-info.php?tid=373
Is there a way to have the renamed link auto redirected to new link so that I don't loose ranking on Google.
My dev team is unable to find an elegant solution and hence I am seeking help on this.