Newton 's Method:
Let, the lion catch you.
For every action there is an equal and opposite reaction.
Implies you caught lion.

Einstein Method:
Run in the direction opposite to that of the lion.
Due to higher relative velocity, the lion will also run faster and will get tired soon.
Now you can trap it easily.

Indian Police Method:
Catch any animal and interrogate it & torture it to accept that its a lion.

Rajnikanth Method :
Keep warning the lion that u may come and attack anytime.
The lion will live in fear and die soon in fear itself.

Jayalalitha Method:
Send Police commissioner Muthukaruppan around 2AM and kill it, while it's sleeping !

Manirathnam Method (director ):
Make sure the lion does not get sun light and put the lion in a dark
room with a single candle lighted.
Keep murmuring something in its ears.
The lion will be highly irritated and commit suicide.

Karan Johar Method (director):
Send a lioness into the forest