The saplings were planted by Satyajit Singh, Conservator of Forests (Territorial Circle), Jamshedpur, K Z Bhutia, Divisional Forest officer (Jamshedpur) and Director of TSZS Vipul Charaborty.
This year emphasis was given on plantation of more indigenous varieties of plant such as Sal, Mahua etc, besides fodder trees like Peltophoum (copperpod) and Gulmohar.
About 50 students from various schools have participated in the inaugural function.
In an attempt to encourage visitors, the TSZS has put up a sale counter of saplings of endemic medicinal plants in the zoo premises.
Singh said the greenery and forest cover in the state has increased with over 29 per cent of forest cover recorded last year.