From the temple you can see the path to trek up to the old Mandir. Since I rode my bicycle from Pune I did not have energy left for the trek.
Jejuri has also been a historically important place as Shivaaji met his father Shahaji here after a long period. The meeting is historically very important as both discussed the strategies against Mughals, here. At that period, Jejuri was one of the major hill forts in South region.
Information from http://www.khandoba.com/