Santanu Sen:
Thol lake - a Ramsar site
Santanu Sen:
Thol lake - a Ramsar site
Santanu Sen:
Darter, Thol
Santanu Sen:
Science meets nature
Santanu Sen:
Lotus leaves
Santanu Sen:
Knob-billed Ducks
Santanu Sen:
good morning
Santanu Sen:
Reed Wrabler
Santanu Sen:
the tree