Jaguar — sink leaking

Address:

Kerala

I have purchased various bath room fittings of JAGUAR Make from the dealer -M/s.Perumilil,Palakkad(Kerala) for Rs.1,87,000/- two months back, but immediately after installation of one of the Sinks, the same is badly leaking. The Plumber had repaired the same several times, but the leakage is still persisting. The above dealer is not caring to rectify the same. Please help me.