NEW DELHI, April 10 -- Monsoon, the lifeblood of India's economy that delivers nearly 70% of the country's rain, is likely to be "normal" at about 102% of long period average (LPA), with an error margin of +/-5%, private weather forecaster Skymet Weather said on Tuesday. The LPA for the June to September period is 868.6mm. Rainfall of 96-104% of LPA is considered normal....