The document is a study on factors influencing investors' decisions regarding portfolio investments in Mumbai. It includes an introduction discussing objectives of the study, portfolio, risk, investment criteria, common errors in investment management and qualities for successful management. The methodology section describes the scope, objectives, sampling method and data analysis. Key points made in the introduction are that an investment portfolio requires balancing return, risk, liquidity and other factors. Risk is divided into systematic and unsystematic types. Common errors investors make include inadequate comprehension of risk-return and untimely investment decisions. Qualities for success include patience, flexibility and contrary thinking.