Truecaller, which operates an eponymous caller-identification service, said on Wednesday it is looking to raise $116 million in an initial public offering on Nasdaq Stockholm.The 12-year-old Stockholm-headquartered firm, which counts India as its biggest market by users, is aiming for a valuation of about $3 billion in the IPO, according to earlier local media reports. The company said it plans to do its listing by fourth quarter of this year.