I'm sorry, but I don't have information on whether the B.Ed degree from Singhania University in Rajasthan is valid for teaching in government schools. B.Ed is a teaching degree and its validity for government schools depends on various factors such as state regulations, recognition by regulatory bodies, and the specific requirements set by the government.
To determine the validity of your degree for government schools, it is advisable to check the official guidelines or contact the relevant education department in Rajasthan. They will be able to provide you with accurate and up-to-date information on whether the Singhania University B.Ed degree is recognized and accepted for teaching in government schools.