India-based price comparison website Reviews42 has raised $5m in a series B round led by investment firm Tiger Global Management that also featured Bertelsmann-backed venture firm Nirvana Venture Advisors and Blume Ventures. Nirvana and Blume provided an undisclosed amount for the company’s series A round in April 2013.

Spark Labs, the US-based creator of an open source operating system for connected hardware development, secured $4.9m on Tuesday from backers including O’Reilly AlphaTech Ventures, the corporate venture capital arm of media…