Complex sentence: Shiva's father, Daddy Girija (Jagapati Babu) has started a pharmacy to create cancer drugs, but Manikuttan needs some Ganja (Marijuana) for it from the forest.
Split into simpler sentences: Shiva's father, Daddy Girija (Jagapati Babu) has founded a pharmacy and are developing a medicine from drugs to treat cancer. For that, Manikuttan needs some Ganja (Marijuana) from the forest.