Pallikal gained two places to be number 10 in the Women's Squash Association (WSA) rankings, the spot she has reached for the first time in December 2012.
"It is obviously a good feeling when you climb up the rankings. I have to be consistent now and try to get into the top five and eventually the number one spot," Pallikal told PTI today.
India's other women's player Joshana Chinappa remains in 21st position despite winning the Richmond Open last month.
Perry has become the oldest player in history to retain a place in the top ten. She is ranked ninth.
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After securing a career-high World No.3 ranking in April 2011, and reaching 27 finals and winning 11, Perry celebrated her 37th birthday in February.
England's world champion Laura Massaro holds onto second place ahead of Egypt's third-placed Raneem El Welily and New Zealander Joelle King at No.4.
The impressive recent run by Nour El Sherbini has seen the Egyptian teenager follow her 14-place rise in the April rankings by jumping a further six positions to No.7.