Thomson Reuters. Costs around $1800 per month I suppose.
If on budget, Cogencis (cogencis.com)
Earlier it went by the name of newswire18.com but has now changed its name.
Last time I checked, they had different affordable plans for news like Top 100, Top 200, Top 500 (covering top 100, top 200 and top 500 stocks respectively).
Pricing was also pretty good, I don't recall properly but was under Rs. 1000 per month for top 200.
I can't find the mention of these schemes on the website, you might need to contact them for further details.