COMPOSITION FOR BOWEL CLEANSING” The present invention relates to a synergistic herbal formulation free from salt and sugar in the treatment of constipation. The present invention also provides a process for preparation of said synergistic herbal formulation of instant invention. Present invention provides a composition comprising leaves and pods of Cassia angustifolia, roots stocks of Glycerrhiza glabra, dried fruit of Terminalia Chebula, matured cremocarp of Foeneculum vulgare and dried petals of Rosa domestica. The leaves and pods of Cassia angustifolia are shade dried prior to use in the composition. Also, the petals of the Rosa domestica are dried prior to use in the composition. The present invention provides a process for the preparation of said synergistic formulation.