India and the United States have a problem in the pharmaceuticals sector. And drug-makers in both countries will be keenly watching whether President Barack Obama and Prime Minister Narendra Modi can do anything about it when the former comes visiting India as a state guest at the Republic Day celebrations in New Delhi...The problem is mainly on two fronts -- on the one hand, Indian drug makers...have been getting flak from the U.S. Food and Drug Administration (USFDA) for intellectual property rights (IPR) violations and for allegedly tampering with data; on the other hand, foreign pharmaceutical companies...have been denied patents by India for their drugs.