Ex-India fast bowler Venkatesh Prasad said pacer Jasprit Bumrah is one of the best bowlers in terms of economy rate. "But it's not just about pace. It's about variations...reading situations," he added. Bumrah has economy rates of 2.65 in Tests, 4.65 in ODIs and 6.66 in T20Is so far. Bumrah took one wicket in first T20 World Cup warm-up match.