Janalynn Castelino, courtesy. By Rebecca Somers Rising Indian singer-songwriter Janalynn Castelino, who recently completed her academic training as a doctor, is living the best of both professions. The versatile multilingual singer—she covers Western pop, Latin pop, R&B, and Sufi-soul—has performed in English, Hindi, Urdu, Turkish, Arabic, Spanish, Marathi and Punjabi. Her original…