Paragraph- Sent 1: The film begins with the announcement of the scheduled launch of a space vehicle carrying an Indian remote sensing satellite which would help scientists identify land suitable for agriculture .
Sent 2: Within a short range of this operation , in the same forest , the state forest department runs an NCC camp for women cadets .
Sent 3: Dhuruvan is a trainer at the camp .
Sent 4: Being a Scheduled tribe , he is deprecated for being positioned as a cadet officer in the forest security force through reservation system by his senior officer Ganapathiram .
Sent 5: But Dhuruvan 's integrity and co-living with other tribes in the forest abnegates aboriginal allegations by other forward caste officials and cadets in the department .
Sent 6: As a part of the training camp , an expedition is organized into the forest for a selected five cadets from the troop .
Sent 7: Dhuruvan selects the five most insolent and disobedient girls in the troop for the expedition intending to provide them better training .
Sent 8: As an attempt at a practical joke , the haughty girls post a complaint to Ganapathiram claiming that they did n't feel safe with Dhuruvan and that he was responsible for whatever that was to happen to them .
Sent 9: Meanwhile , the expedition begins and while Dhuruvan is caught up in some procedures at the forest check post , the girls non-chanlantly try to drive the jeep and run it down the slope of a hill .
Sent 10: After losing their vehicle , the troop decides to stay in the forest for the night and go by an alternate route the next morning .
Sent 11: But the plot thickens , when Kalpana describes two white men with advanced armaments in the Indian forest heading towards the direction of the Indian satellite research station in the forest . 
Question: Who are the two main characters in this film? 
Incorrect Answer:   Dhuruvan.