Beginning tomorrow, commuters travelling between Mumbai and Pune will have two options: take the usual scenic route through the Western Ghats, or zip through the hills and valleys in under 10 minutes. The inauguration of the Missing Link on the Mumbai - Pune Expressway on Friday (May 1), with its tunnels and bridges, will cut travel time between the cities by 6 km, translating into at least a 30-minute reduction. Maharashtra Chief Minister Devendra Fadnavis will inaugurate the project at around 12.30 pm, where it will also attempt to secure a Guinness World Record stamp for the world’s widest road tunnel. The project is a feat of engineering that will also help make travel safer. Here is how. Safe travels Currently, those travelling between the two cities take either the six-lane, 94-km-long Mumbai-Pune Expressway or the old Mumbai-Pune Highway (or National Highway No. 4), a four-lane, 111-km road stretching from Shil Phata to Dehu Road.…