Investment turnovers over 60l/ audit needed?

if you are doing share trading & the turnover exceeds 1crore mark then audit will be required.

Any particular section of the Income Tax Act that bears this out?

Section 44AB of the I-T mandates for Tax Aduit if the turnover from business crosses the 60lacs (1crore From Apr13) thershold and for profession the gross receipts cros teh 15lacs threshold.  Please refer teh below link for your information:

https://law.incometaxindia.gov.in/DIT/Income-tax-acts.aspx

No It cannot. because you are holding the money in the form of money to earn interst and not in teh ordinary course of business.

Moreover the 60lacs threshold now s1cr is in regard to the turnover as shown in the P&L account. Invesements are shown in the B/S and hence cannot be subjected to tax audit.

First of All, there is Trading Activity in the Secondary Market. Buying & Selling with the Primary Intention as Investment Not Covered. 

If it is purely Trading Activity, the transactions invoving taking delivery of Scrips considered for Turnover. The Intra Day Transactions, only the Profit or Loss shall be considered. The Sale Value of Shares Covered without taking Delivery of the Scrips not taken for Turnover.

If the Turnover Calculated above Exceeds Rs.60.00 Lakhs For Assessment Year 2012-2013 and Rs.100.00 Lakhs For Assessment Year 2013-2014, the You have to maintain Books of Accounts and Subject them to Audit U/s.44AB of the IT Act