Vikram Seth’s “A Suitable Boy” is, at its core, a love story: Lata and her mother, Mrs Rupa Mehra, are both trying to find – through love or through exacting maternal appraisal — a suitable boy for Lata to marry. Set in the early 1950s, in an India newly independent and struggling through a time of crisis, “A Suitable Boy” takes us into the richly imagined world of four large extended families and spins a compulsively readable tale of their lives and loves.