NEW DELHI — Bad traffic is a fact of life in New Delhi, but it’s often at its worst when As India’s capital prepares to host a summit of the BRICS grouping of countries this weekend, parts of one of the world’s busiest urban centers have been turned into tightly controlled security zones Key points and original sources are listed below.

• NEW DELHI — Bad traffic is a fact of life in New Delhi, but it’s often at its worst whenS1

• As India’s capital prepares to host a summit of the BRICS grouping of countries this weekend, parts of one of the world’s busiest urban centers have been turned into tightly controlled security zonesS2