Recent roars from an investment firm, credited to put Indian startups on the global map in the past decade and a half, are turning local young firms into unicorns at a pace never seen before in the world’s second largest internet market. Tiger Global has written — or is in late stages of writing — more than 25 checks, spanning from a few million dollars to over $100 million, this year alone. About 10 of its investments have been unveiled so far with the rest still in the pipeline for…