(For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window) * FTSE 100 up 0.8%, FTSE 250 adds 0.5% May 4 (Reuters) - British shares climbed on Tuesday, boosted by commodity and travel and leisure stocks, while investors awaited a reading on factory activity data for April later in the day to gauge the pace of British economic recovery. The blue-chip FTSE 100 index rose 0.8%, with heavyweight oil majors BP and Royal Dutch Shell gaining 1.6% and 2.1%, respectively, and providing the biggest boost. The wider mining sub index added 1.6%, tracking higher metal prices. Real estate stocks gained, while travel and leisure stocks jumped. British Airways owner IAG surged 3.6% to the top of FTSE 100 index after Prime Minster Boris Johnson on Monday said Britain is on course to ditch the COVID-19 social distancing rule in June. The domestically focussed mid-cap FTSE 250 index also advanced 0.5%. (Reporting by Devik Jain in Bengaluru; editing by Uttaresh.V) Our Standards: The Thomson Reuters Trust Principles.