Shiv Nadar School in Noida was evacuated and closed on Friday as a precaution after receiving a bomb threat via email. Bomb disposal squads and police teams were deployed on site to conduct thorough searches.The school administration suspended all classes immediately to allow security personnel to carry out a complete sweep of the premises.Authorities are investigating the source of the email, and no explosives have been found so far.Parents have been advised to await official updates.