Rainbow Drive Layout is a residential community on Sarjapur Road, off Outer Ring Road (about 2 KM from that junction), and about 0.5 KM from Wipro Corporate Office. From Koramangala travel time is about 30 minutes (however, due to traffic congestion on Sarjapur Rd, this can be as much as 45 minutes to 1 hour during peak hours - worst being Saturday evenings). During office hours you can call at 08025831002 for help with directions.
Google maps, site locator link: https://goo.gl/maps/HUSjnxmZUmS2