Jha's artworks are marked by bright, earthy colour and a distinctly local pictorial language rooted in Mithila tradition, even as his materials and forms range across painting, sculpture, and photo-performance. His signatureYatraseries depicts boat-forms brimming with flowers and fruit, rendered in saturated blues, yellows, and pinks against richly textured, jewel-like backgrounds. Central to his practice is the symbolism of the Ganga and Charnamrit — milk, curd, honey, sugar, and ghee — each representing purity, harmony, and devotion. Sculptural works like decorated heads and animal forms merge folk motifs with contemporary sensibility, reflecting his sustained engagement with ritual, memory, and place.