Here is the link to the Telegraph report on the India Genome Variation (IGV) project. Some excerpts:
The Indian Genome Variation (IGV) project analysed 75 genes from 1,871 people drawn from 55 diverse caste, religious and tribal communities. Scientists also expect the project to throw light on how genes influence diseases, susceptibility to infections, and response to medicines.The study by a consortium of six Council of Scientific and Industrial Research (CSIR) laboratories and the Indian Statistical Institute, Calcutta, has provided the strongest genetic evidence yet to suggest that several populations have intermingled in India over the centuries. ...
The scientists consider some of the findings about genetic proximity and disease risk data as so sensitive that they have decided not to make the identities of the communities public — for now. ...Here is the link to the research paper, published in the journal Human Genetics. In my university, I have access to this journal. However, it might be behind a paywall in other places. The link to the project home is over here. I probably should have a follow up post on this later on.
The analysis has also indicated that Kashmiri Pandits and Kashmiri Muslims are genetically similar and share genetic similarities with Dravidian groups. It has also shown that some Dravidian-speaking population groups in south India have Indo-European lineage.