NEW DELHI (Reuters) - India's government tentatively moved to open talks with an anti-corruption activist who has shed five kgs (11 lbs) in a week-long hunger strike that has earned him more public support at the expense of embattled Prime Minister Manmohan Singh. The 74-year-old Anna Hazare spent the seventh day of his fast lying down on a makeshift stage on an open ground in the capital as electric fans cooled him in the humid monsoon heat, where temperatures were reaching the mid-30s Celsius (95 Fahrenheit). Both sides said at the weekend they are open to talks, with Singh saying there was a "lot scope for give and take." Singh was under pressure to end the impasse after a widely panned crackdown last week saw Hazare and thousands of his supporters briefly arrested and sent to jail.