I am placed in accenture chennai and I am confused about the flat I need to buy. I have no knowledge about chennai and I

Since you are new to Chennai, one of the things that you should know is that the real estate market of the city is further divided into smaller micro markets which differ based on the region of the city. The rates and offerings vary greatly between these micro markets. In the long run, areas like OMR or OCR are regions which almost guarantee a price appreciation in the future. I am sure you are looking for an apartment which will offer you all the comforts and amenities while also giving you attractive returns on your investment. My advice would be to stick to these areas which have a proven track record and would not take a lot of research or prior information. Just to give you a head start on your search, the most popular projects at OMR right now are Radiance Mercury and Pacifica Aurum. Let me know if you have any further questions!