The incident took place last evening and juveniles escaped by crossing the boundary wall of the home, using ropes made of blankets and bedsheets, Meerut District Probation officer Pushpendra Singh said .
A case has been registered in this regard and efforts are on to nab them, he added.
Singh said that a case of dereliction of duty by the employees of the observation home has come to light and will send a report to the Social Welfare Department recommending action against those responsible.
Out of four juveniles, three belonged to Meerut while one was from Baghpat, Singh said.