The following section needs to be cleaned up to conform to a higher standard, as it is possibly too long, too detailed, lacking objectivity, unclear, or lacks citations.
Not much is known about Digvijay, only that he is a specialist in explosives and a bombs maker. After the Valley was taken by the Disciples, he hid all his explosives and began to hide, knowing that they would one day find him and force him to create bombs for them. But he is finally captured and held hostage, but he refused to give the Disciples' information about where his bombs were and refused to make bombs for them (which can explain why the Disciples rarely use explosives, except when they try to blow up the Relay Station). As punishment, they tortured him mentally and forced him to drink "the Elixir".
Valley of the Yetis
His first appearance is when Ajay Ghale overhears Master Sandesh's soldiers talking about how they caught Digvijay, and how they were planning to force feed him the Elixir and sacrifice him to the Yetis on the radio. Ajay goes to where Digvijay is being held up and rescues him. After Ajay saves him, he calls and tells him the location of Sandesh's temple, and gives him explosives in order to destroy the temple gates so he can storm the temple, kill all the Disciples, and get information on location of "the Relic" so Ajay can destroy it and end its evil once and for all. He also tells Ajay that ever since the Disciples forced him to consume "the Elixir", he has been having maddening visions and says that the Elixir transforms people's flesh; thus implying that the Elixir transforms people into Yetis and that the Relic is the source.
Afterwards it is impossible to know what happened to him, since Ajay left the Valley without meeting him again, but most likely he becomes a Yeti.