Vikramkhol Cave Inscription

Vikramkhol or Bikramkhol cave is a prehistoric archaeological site known for prehistoric inscriptions.
Location.
Vikramkhol cave is located near Jharsuguda, Odisha, India and lies in Reserved Forest of Belpahar range, at a distance of 12 km from Belpahar.
Inscriptions.
The inscriptions at Vikramkhol cave are written on an uneven rock surface in a natural rock shelter using red Ochre paint which is later incised into the rock. The inscriptions were discovered around the 1930s and first studied by Dr K P Jayaswal. who tentatively dates it 1500 BC. There are two theories regarding the inscription – one declares it a writing, while others doubt it as a rock art and nonliterate rock carvings
Theory of literate script.
According to Jayaswal, the prehistoric scribblings at Vikramkhol represent a picto syllabic writing system which represents a mixture of Harappan and Brahmi hence forming a connection between the two. The inscribed portion covers an area of 35 feet by 7 feet, The evidences which support it as a writing system are as follows;
Other scholars such as Naresh Prasad Rastogi state that Its date of the Vikramkhol inscription is still debatable and its letters deserve a more searching scrutiny 
Non literate system.
Scholars such as Richard Salomon have completely dismissed the Vikramkhol cave inscriptions as pseudo inscriptions According C.L Fabri, the topsy turvy incised signs may have some resemblance with Brahmi script but may not represent writing but possibility of a primitive rural writing cannot be denied either
Neglect.
Some historians have felt that, due to negligence and apathy by Government agencies, the inscriptions are fading out and damaged by vandals. Activities of coal mines in surrounding hills, industries like sponge iron are putting environmental pressure on this prehistoric archaeological site. The rock shelter, where the inscriptions are found, is not fully protected and kept open to atmosphere, giving scope for vandals and visitors to deface the inscriptions. As it is located inside Reserve Forest of Belpahar range, the remote access to the place has also contributed to neglect by Government Agencies.
Other Inscriptions.
Another set of proto Brahmi or pre historic inscriptions have been found at Garjan Dongar in Sundergarh district, and Ushakothi in Sambalpur district in Orissa.