It should be Lance Gibbs of Westindies.
Murlidharan of Sri Lanka he had taken 800 wickets in test cricket
The first bowler to reach the target of 100 wickets in Test Cricket was Johnny Briggs of England.
Fred Trueman, of England, was the first bowler to take 300 Test wickets
Mutthaih Muralidharan has taken most wickets (800) in the Test Cricket.
C.K.Nayudu was the first indian test cricket captain
Courtney Walsh of the West Indies was the first cricketer to take 500 Test wickets, in 2001.
Dennis Lillee of Australia was the first bowler to take 350 wickets in Test Cricket. He achieved this mark in 1984 in the last match of his Test Cricket career at Sydney playing against Pakistan.
Courtney Walsh was the first bowler to take 500 wickets in Test cricket. It happened in 2001 in his 129th match when he had trapped Jacques Kallis in front of the wickets.