What are the basic steps to be taken to reduce emission?

for reducing ur vehicles emmision ,keep the vehicle mantained periodicaly .and the checkups is qiuet important for the betterment of engine life .keep the driving in efficeint manner and avoid the clutch pedelling time .dont make more clutching for driving .

Best thing you can do is to run the vehicle on the specified tyre pressure and in the specified gear by the manufacturer. The devices like catalytic converters are standard in vehicles these days. Don't over rev or race the engine which will produce more emission than regular use.

firstly, set up the engine as lean as possible " air Fuel mixture". No. 2. lesser load. no.3 exhaust filtration " catalytic converter"