If you see a dead animal on the roads of Delhi, please consider giving the animal or bird a dignified farewell. You may dig a pit, place the corpse of the animal in the pit and cover it with salt (sendha namak) as that will help the flesh to decompose and prevent insects from eating into it.
Else you may call Municipal Corporation of Delhi and request them to pick up the corpse of the dead animal, do take your call token number:
Central control room numbers are: 011-23212700, 23220010, 23220016, 23220037
East Delhi: 011-22303700, West Delhi: 011-25422700