Indian shuttler Sourabh Varma has reached the quarterfinals of the Belgian International badminton Challenge. He eked out a hard-fought win by defeating the sixth seeded Lucas Claerbout of France 21-19 16-21 21-15 in the pre-quarterfinal men's singles contest.Sourabh will next take on Scotland's Kieran Merrilees. However, Rahul Yadav Chittaboina and Rituparna Das could not make it to the last eight after suffering contrasting losses in the second round last night.In men's doubles, it will be an all Indian clash in the quarterfinals as Vighnesh Devlekar and Rohan Kapoor take on Arjun MR and Ramchandran Shlok.