Dear Abhinandan Jain
You have raised a very relevant query. According to the definition of "Investments" in AS-13 and the "Guidance Note on Terms Used in Financial Statements", Investments are assets held by an enterprise for earning income by way of dividends, interest, and rentals, for capital appreciation, or for other benefits to the investing enterprise. Thus, bank FD can fall under the category of investments.
Further, the newly notified Schedule VI (termed as Revised Schedule VI) gives preference of Accounting Standards over Schedule VI requirements.
In my opinion, Bank FD with more than 3 months but less than 12 months maturity should be treated as current investments. Bank FDs with more than 12 months maturity should be treated as non-current investments.
Bank FDs with less than 3 months maturity come within the definition of "Cash Equivalents" as per AS-3 and hence will have to be categorised as cash equivalents.