Oct 25 (Reuters) - Sri Lankan shares slumped nearly 2% on Tuesday, falling for a third straight day, dragged by industrials and financials.

* The CSE All-Share index closed 1.95% lower at 8,516.40. On Friday, the index closed at 0.59% lower. The market was shut on Monday for a holiday.

* Sri Lanka's parliament on Friday passed a constitutional amendment aimed at trimming presidential powers, beefing up anti-corruption safeguards and helping to find a way out of the country's worst financial crisis since independence.

* Lanka IOC Plc and LOLC Holdings Plc were the top drags on Tuesday, falling 8.2% and 2.3%, respectively

* Trading volume on the CSE All-Share index rose to 69.2 million shares from 52.8 million shares in the previous session.

* The equity market's turnover was 2.05 billion Sri Lankan rupees ($5.67 million), according to exchange data.

* Foreign investors were net buyers in the equity market, purchasing 532.7 million rupees of shares, while domestic investors were net sellers, offloading stocks worth 2.05 billion rupees, data showed.

* For a report on global markets, click ($1 = 363.0000 Sri Lankan rupees) (Reporting by Navamya Ganesh Acharya in Bengaluru; Editing by Sriraj Kalluvila)