1. Varanasi (Benares)   Adyar,Cooum   Ganga   Tapi   Gomti   Hint Half-n-half Clue   2. Surat   Godavari   Hooghly   Adyar,Cooum   Tapi   Half-n-half Clue   3. Lucknow   Tawi   Chambal   Godavari   Gomti   Half-n-half Clue   4. Chennai (Madras)   Sabarmati   Hooghly   Ganga   Adyar,Cooum   Half-n-half Clue   5. Kolkata (Calcutta)   Jhelum   Hooghly   Gomti   Sabarmati   Half-n-half Clue   6. Kanpur   Ganga   Ganga, Yamuna   Adyar,Cooum   Godavari   Half-n-half Clue   7. Gauhati   Brahmaputra   Godavari   Tawi   Hooghly   Half-n-half Clue