LONDON.- Today in London, Sothebys sale of South Asian Art brought an exceptional total of £5,465,550, well above the pre-sale expectations of £2,739,500-3,912,500 and a figure that is more than double the sum realised for the equivalent sale at Sothebys London last summer. The sale was 90% sold by value and 78% sold by lot. Furthermore, 81% of the lots that were sold in the sale achieved prices above their pre-sale high estimate. The group of 12 paintings by Rabindranath Tagore presented for sale by the Dartington Hall Trust, a charitable organisation based in South Devon in the UK were the undoubted star of the show. The group, which had been the subject of considerable interest, both from India and around the world, brought a combined total of £1,599,000, considerably more than the £250,000 that had been expected. All 12 Tagore paintings soared above their estimates but the highest selling work of t