Maharashtra Chief Minister Vilasrao Deshmukh managed to get an assurance from Microsoft chairman Bill Gates to invest in the IT park at Hinjewadi on the outskirts of Pune. The quantum of investment from Microsoft, however, is not known.Deshmukh, who is on an eight-day tour of United States to promote Maharashtra as a preferred investment destination in India, met Gates and other senior officials of Microsoft Corporation at Seattle. Gates also assured Deshmukh to help the Maharashtra government in developing systems to educate farmers about the latest techniques, update them with market trends and weather reports to improve productivity, according to a release issued by the Chief Minister's office today.