Security measures were heightened across Uttar Pradesh following a car blast in Delhi. Anti-terror agencies and police conducted searches in multiple cities, including Lucknow, in response to the incident.
Ten days after the devastating car explosion near the Red Fort, in which 13 people lost their lives and several others were injured, investigators say the incident is part of a broader terror conspiracy involving a professional network of radicalised individuals based in Faridabad, Saharanpur and Kashmir.
According to investigators, Shaheen Shahid, a doctor associated with Al-Falah University in Faridabad, was among those arrested following Monday's explosion near the Red Fort.
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 Bombay High Court acquitted all 12 accused in the 2006 Mumbai train blasts case, citing a failure by the prosecution to prove their guilt and raising serious concerns about the investigation and evidence presented.
Accused Wahid Ansari and Farhan Khot were also awarded life imprisonment in the 2002-2003 bomb blasts case.
Police have said this is normal in such a sensitive case.
On Wednesday, the special MCOCA court in Mumbai awarded death sentences to Kamal Ahamed Ansari, 37, Mohd Faisal Shaikh, 36, Ehtesham Siddiqui, 30, Naveed Hussain Khan, 30 and Asif Khan, 38, for the role they played in the 7/11 Mumbai train blasts, which claimed the lives of 188 people.
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.