Hi,
I visited Rajmachi Fort and the Experience Was incredible The Hill Ranges Surrounding the fort Was Astonishing
The Best advice I would like to give is its better to have car or bike till the base of the fort as it was really far away than expected from the railway station Approx 20km From Lonovala Railway Station
Their are many commercial Vehicals You can rent for some time
The Fort itself is a real deal its one of the best treking location in lonavala The View is Really Adventurous To watch