Threads on engine side are gone..

[Jith_in]

Guys i have a cbz xtreme 2011 model yesterday i noticed few drops of oil under my bike. Tried to tight drain bolt but it was rotating freely. Visited asc and they said the threads on engine side are gone and need to replace the whole casting which costs 2.5k. Is there any other way to rectify this problem? I am from kollam, kerala. Please suggest me a good mechanic who can do this work..

Tapatalked from my Canvas A76