| Abstract : | In this paper, we explore the evolution of binary fraction in star clusters within a distance of 1 kpc using three complementary techniques with Gaia DR3 data. We use published membership data of 376 clusters within 1 kpc and study the relation of binarity to their galacto-centric distance, size (core and limiting radii), location in the galaxy (l,b) and mass-functions. We ran ASteca to estimate the binary fraction and parameters within various age bins. We also identify binaries by studying the binary sequence of the composite HR digram of these clusters of varying age bins. We also estimate binaries using the RUWE values of stars in Gaia DR3 in different age bins. We find that the binary fraction to be $0.29 \pm0.03$ for all clusters within 1 kpc of the Sun, irrespective of size, age and mass.
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