Oh yeah, repfamindia, repbudgetsneakers. I have done hauls up to 4kg in BLR with max 1500rs in customs.
I had Mumbai customs once for my haul because it was shipped to another location. It was not a pleasant experience. Did you ship with boxes? i do not think youd get hit with high duties.
Not pandabuy but i have used cssbuy it was smooth, everything used to come within 20 days. The custom duties are heavily dependent on where youre ordering, imo Bangalore customs was nicer, never had to pay more than 1500rs as duty.