FabHotels, a budget hotel brand, is likely to raise nearly Rs 40 crore in a Series B2 round from its existing investors United States-based Goldman Sachs, Accel and Singapore’s RB Investments. The company was founded by Vaibhav Aggarwal and Adarsh Manpuria in 2014. Earlier, it had raised $7.8 mn from Goldman Sachs & Others. The…