how to go to the peak if you are coming from tsing yi station thru MTR? How much will be the fare?

From Tsing yi, you can take the Tung Chung Line to reach HK Station/Central. Get out of the station from Exit J2 and then you can easily find the way to Peak Tram Teminal. Take the tram, you can reach the peak. The fare is 12.5HK$.
From Peak, you need to reach Central Station to take Island Line to reach Admiralty Station. Walk to Admiralty West to take bus 629 to reach Ocean Park directly. The bus fare is 10.6HK$.
From Ocean Park, you can take 629 to reach Central Station. Then you can take the Island Line to reach Wan Chai Station. Get out of the station to reach Golden Bauhinia Square and this is a good place to see the symphony of lights.