Panni refers to the strip of aluminium foil used to chase the dragon. Together with a pungi it is used to enjoy gard (heroin).
Etymology: From Hindi, panni means a lot of things in hindi, one of which is aluminium foil.
Bushama had some secret service guys deliver some high grade heroin to him. Bushama did not mainline, instead he got Apu (from The Simpsons) to get some panni and rolled himself a pungi. He really enjoyed chasing the dragon.