The Kangla possesses a sobriquet, "Lungs of Imphal" as it is heavily forested, providing oxygen at a massive level in the heart of the metropolis of Manipur. Unfortunately, due to some developmental construction activities in the last few years, some minor but significant deforestation occurred inside the Kangla. In the year 2009, the Kangla Herbal Garden was set up by the Kangla Fort Board, in order to carry out the plan of planting medicinal plants inside the Kangla into action. The responsibility for bringing up the botanical garden was held by the
Lamphel based sub-branch of the
North East Institute of Science and Technology, Jorhat (NEIST). In the year 2010, the
Government of Manipur financed out of to the NEIST to carry out the task. It planted around 131 different plants, (including around 20 medicinal plant species) in the garden. Notable plant species nurtured in the Kangla Herbal Garden include heigru (
Phyllanthus emblica), kihori (
Phyllanthus acidus),
agar (
Aquilaria agallocha), neem (
Azadirachta indica), tera (
Mobax malabathricum), singairei (
Nyctanthes arbor-tristis) and leihao (
Michelia champaca). An area covering 3.5 acres of land was allocated for the development of the botanical garden by the
Manipur Government. During the month of June in 2019, around 700 indigenous fruit-bearing tree saplings were planted inside the , formerly known as "Biodiversity Park" of the Kangla) of the Kangla by the
Government of Manipur, under the initiative of Green Manipur Mission. During the month of September in 2019, around 120 trees, including mayokfa, agar, uningthou,
teak, chahui and samba, were planted inside the Kangla by the editorial board and the management team of "The Sangai Express" (TSE), a newspaper daily of Manipur, on its 20th foundation day. There's another garden named "Engellei Leikol" (formerly known as "Rock Garden" of the Kangla) located in the southern part of the Kangla. During the month of May in 2022, around 50 fruit-bearing plants were planted inside the Kangla by the Institute of Bioresources and Sustainable Development (IBSD). There's a plan for planting 10,000 saplings of fruit bearing trees inside the Kangla by the Kangla Fort Board, under the leadership of
Nongthombam Biren, the
Chief Minister of Manipur. == Places ==