India, Feb. 17 -- Four beefy men at the gates of the Najam Baug Trust at Dongri kept a close eye on the guests streaming in. Everything about the wedding that took place inside was low key, starting with the plain invite printed on a white paper that was first given to criminal advocate Farhana Shah to secure parole for the groom's mother.

And yet, for all the efforts to keep the wedding out of the public eye, several pairs of eyes and ears in Mumbai police and central agencies have been following the preparations keenly. Ilyas Memon and Humera Shaikh's nuptials are possibly the last in the immediate family of Tiger Memon, the key conspirator in the March 12, 1993 serial blasts, that left 257 people dead, over 700 injured, and which perm...