** Natco Pharma NATP.NS rises 3.3% to 840 rupees
** Delhi Court dismisses appeal filed against co by F. Hoffmann-La Roche AG over launch of Risdiplam drug in India
** Judgment paves way for co to launch generic version of drug 'Risdiplam', used to treat spinal muscular atrophy
** Co to launch product with immediate effect at 15,900 rupees; offer some discount to certain deserving patients through its patient access programme
** Around 2.2 mln shares traded, more than 5x the 30-day avg
** YTD, NATP falls ~39%
(Reporting by Vijay Malkar)
((VijayDattaram.Malkar@thomsonreuters.com;))