This is with reference to column by Manohar Thyagaraj linking Bombay blasts to the growing relation with US.
However, we have had blasts in Mumbai (which had a larger death toll than now) during 1993 when the relations with US were at low key.
The fact is that India is a soft target for showing the strength of religious fundamentalism. This cannot be done on this scale, (setting fire to Godhra pilgrims, attacking Akshardam and the holy shrine at Varanasi, trooping the Parliament itself) in countries like Israel or US or those in Europe.
The problem is with weak security, no value for a human being's life, lack of intelligence (IB), and the overall will of politicians to tackle the issue.
Seven bombs are blasted simultaneously and this is considered as a planned attack. But, with the given security conditions, it is probably possible for the militants to carry out bombings at several places across India. And this gives jitters.