S. 43(5) : Speculative transaction-Non–banking financial company- Trading in shares and securities-Loss incurred as a result of trading in shares–cannot be set off against the business of futures and options as it did not constitute profits and gains of a speculative business. Statement by assessee before Assessing Officer that share trading was its sole business during the year – Bond by admission – Interpretation- Intention of legislature to be seen . [S. 73, 143 (3( ]