Contents: Preface. 1. Introduction. 2. The holy Ganga. 3. Economic relevance of the Ganga and its tributaries. 4. Origin of Ganga. 5. The Ganga Bhagirathi hooghly national waterways. 6. The sanctity of the Ganga. 7. Status of edaphic variables and their influence on macrophytes species diversity in Diarah land of the Ganga basin. 8. Biological spectrum of Ganga. 9. Fish and fisheries. 10. Benthic soil and biota. 11. Productivity. 12. Pollution of river Ganga. 13. Chemical features of liquid wastes. 14. Sediments. 15. Bacteriological studies. 16. Physico chemical character of river Ganga waters. 17. Microbial pattern. 18. Biomonitoring of Ganga at polluted sites. 19. Heavy metal contamination of Ganga river at Varanasi in relation to atmospheric deposition. 20. Conclusions and future strategy. Appendix. References. Index.