Indian Davis Cupper Prakash Amritraj [ Images ] prevailed over Ivan Miranda of Peru in straight sets to set up a quarter-final with top seed Vincent Spadea in the US $50,000 Calabasas Challenger event in California.

Amritraj won the second round hard-court event match 6-4, 6-3.

Ranked 227 in the ATP list, Amritraj has a daunting task against Spadea, currently ranked 89 but once in the top-20.

The Indian also tasted success in the doubles event as he teamed with American Alex Kuznetsov to book a quarter-final berth.

The Indo-American pair defeated Colin Ebelthite of Australia [ Images ] and Peter Polansky of Canada [ Images ] 6-2, 4-6, 11-9 in a second round match.

They next face qualifiers Somdev Devvarman [ Images ] and Nathar Healey of Australia, who stunned the third seeded pair of Izak Van Der Merwe and Todd Widom in the second round.

The Indo-Australian pair made a remarkable comeback to beat the formidable Russian-American pair 6-7(1), 6-3, 10-6.

Somdev bowed out of the singles after losing his first round match to Alex Bogomolov Jr.