Indian equity benchmarks Sensex and Nifty50 are likely to start the week on a positive note, as suggested by Nifty futures trading on Singapore Exchange. Both indices have registered five weekly gains in a row, in a surge that took the 30-scrip index past the 60,000 mark for the first time ever. At Indian equity benchmarks Sensex and Nifty50 are likely to start the week on a positive note, as suggested by Nifty futures trading on Singapore Exchange. Both indices have registered five weekly gains in a row, in a surge that took the 30-scrip index past the 60,000 mark for the first time ever. At