Telecom stocks, GSFC and Tata Motors among top 8 stocks that trended today

The S&P BSE Sensex tumbled 537 points to end below its crucial psychological level of 26,000 in trade on Monday, while broader CNX Nifty also settled below its key support level of 7,800.

Domestic markets slipped tracking weak trend seen in Asian markets after data on Friday showed China's factory activity shrank for a 10th straight month in December. Reacting to the news, China's benchmark CSI300 share index dipped 7 per cent on the first session of 2016 on Monday, prompting the stock exchange to halt trading for the rest of the day.

The 30-share index ended at 25,623.35, down 537.55 points, while broad-based 50-share index quoted 7,791.30, down 171.90 points at close.

Here are top 8 stocks that trended today:

1. GSFC: Shares of Gujarat State Fertiliser and Chemicals gained nearly 12 per cent after the company said the National Highway Authority of India (NHAI) is likely to use its 'Nylon 6 fibre products' for its infrastructure projects including construction of roads across the country.
2. Tata Motors: Shares of Tata Motors fell over 6 per cent after the company on Friday reported 4 per cent decline in sales at 39,973 units for December compared to 41,734 vehicles in December 2014.
3. Idea Cellular, Bharti Airtel, RCom: Shares of telecom stocks fell up to 6 per cent after the Telecom regulator Trai wrote to operators to ensure compliance with call drop regulations, effective January 1, even as service providers remain defiant and say compensation to subscribers will be paid only after court orders them to do so.
4. Eicher Motors: Royal Enfield has recorded yet another year of stunning growth. The iconic Bullet maker, which is part of Eicher Motors has registered 50 per cent growth in its total sales at 4.5 lakh units for the calendar year 2015. The stock of Eicher added nearly 3 per cent intraday.
   
5. Novartis India: Drug firm Novartis India has completed the transaction to sell its animal health business to Elanco India, an affiliate of Eli Lilly. The stock gained 1.58 per cent intraday but ended flat.
   
6. M&M: Shares of Mahindra & Mahindra ended 1.25 per cent down after the auto major on Saturday said that it is willing to promote bio-CNG plants across the country in a big way.
   
7. Power Grid: Shares of Power Grid added over 2 per cent intraday but ended flat after the company announced that Power Grid Vizag Transmission, a wholly owned subsidiary of Power Grid Corporation of India, has successfully charged the 1st element of the Project: Khammam - Nagarjunasagar 400kV D/C Transmission line on December 31, 2015, within the completion schedule specified.
8. SML Isuzu: Shares of SML Isuzu fell 5 per cent after the company reported 18.27% fall in December sales. The company has sold 877 vehicles during December, 2015 against 1073 vehicles sold in December, 2014.