The machine to machine communication in Home Area Network (HAN) having a great impact on building a powerful smart grid. With recent advances in M2M technologies, SG smart meters are not only collecting the information about the energy consumed, but also detailed energy consumption pattern and also used for analyzing future demand of utilities. Information and communication technology is playing very important role in transforming Power grids to Smart grid. However, there are many challenges in the design of the Smart grid communications network whereby the electrical appliances and smart meters are able to exchange information pertaining to varying power requirements. Furthermore, different types of M2M gateways are required at different points of the SG communication network. This article surveys a number of existing communication technologies that can be adopted for M2M communication in HAN for SG and also explained the various challenges that the M2M communication in HAN for Smart Grid is facing. Furthermore, a possible solution to deal with these challenges and to improve Machine to machine communication in HAN for Smart Grid is also presented.