A birthday cake was cut by school children near the tiger enclosure soon after Dona and and its mother came out in the enclosure from the cage.
The guests on the occasion, including Tata Steel Managing Director H M Nerurkar's wife Surekha Nerurkar, wished Dona a long and cheerful life.
The last tiger cub born in the zoo before Dona was Shanti in December, 1999, TSZS sources said.
A male tiger Raghab was acquired from Assam State Zoo, Guwahati, in March, 2010. Raghab and Shanti were then paired resulting in the birth of Dona on April 16 last year.
Meanwhile, an 8-year-old zoo leopard, Basanti, gave birth to a pair of cubs on April 3, the sources said.