The hand-written letter was received Thursday morning at Dwarka Devasthan Samiti office.
The letter mentioned that a bomb has been planted at Jagat Mandir, Dwarka. this was a second letter threatening the Jagat Mandir, Dwarka.
Police checked the temple area and found nothing suspicious.
The seven-floor temple was built in the 16th century stands majestically on 72 pillars.
Lord Krishna's grandson Vajranabha is said to have built the original temple.