25 paisa coin year of manufacture,material and specifications

1957-1960

Coins struck in nickel.
Weight 2.5 grams, diameter 19mm.
Denomination referred to as "naye paise".

1961-1963

Larger "25" on reverse.

1964-1968

Denomination referred to as "paise".

1972-1990

Coins struck in copper-nickel.

1980

Rural Women's Advancement.

1981

World Food Day.

1982

IX Asian Games.

1985

Forestry.

1988-2002

Coins struck in stainless-steel.
Reverse depicts a rhinoceros.