Twelve persons, arrested in 2006 for their involvement in the July 11, 2006 serial train blasts case, were acquitted by the Bombay high court on Monday.
The development assumes significance as under MCOCA, a confession does not have evidential value if it is not a voluntary and true disclosure.
A special court on Monday allowed the Anti-terrorism Squad to conduct narco analysis tests on three accused in July 11 train blasts case.
With this, the number of arrests in the Malegaon case has risen to seven.
Charges against eight Muslim youths accused in the 2006 Malegaon bomb blasts case were on Monday dropped by a special court in Mumbai due to lack of evidence against them.