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We study time evolution and gravitational wave emission properties of a blackhole orbiting {\it inside} an accretion disk surrounding a massive black hole.We simultaneously solve the structure equations of the accretion disk inpresence of heating, cooling and viscosity as well as the equations governingthe companion orbit. The deviation from Keplerian distribution of angularmomentum of the disk due to pressure and advection effects causes a significantexchange of angular momentum between the disk and the companion. Thissignificantly affects the gravitational wave emission properties from thebinary system. We show that when the companion is light, the effect isextremely important and must be taken into account while interpretinggravitational wave signals from such systems.Comment: 8 pages of Latex plus postscript fil

Gravitational wave emission from a binary black hole system in the presence of an accretion disk