The Ajmer Dargah bombing (also called the Ajmer Sharif blast) occurred on 11 October 2007, outside the Dargah (shrine) of Sufi saint Moinuddin Chishti in Ajmer, Rajasthan, India, after the Iftar period had started. Investigations initially circled around the terrorist organisation Lashkar-e-Taiba, based in Pakistan, and later focussed on the alleged involvement of Hindutva organization Rashtriya Swayamsevak Sangh and its groups behind the blast.

On 22 October 2010, five suspects, who had been arrested by the Anti-Terrorism Squad of India, were charged with conspiracy in connection to the bombing. Four of the five suspects were alleged to be connected to the Hindu nationalist group Rashtriya Swayamsevak Sangh.

According to Investigation sources, Patel was part of the five-member group that planted the bomb at Ajmer Dargah. While two planters 'Harshad Solanki and Mukesh Vasani' have already been charge sheeted, Patel was part of a back-up team, including Suresh Nair and Mehul alias Mafat Bhai, which went to the site as a contingency plan to take charge of the affairs in case the two planters failed to place the bomb or developed cold feet.

On 10 October 2007, Suresh Nair, Mehul and Bhavesh Patel took a consignment of explosives from Sunil Joshi, who was later found murdered under mysterious circumstances in Godhra. They reached Vadodara n the same day and boarded a private bus for Udaipur. At Ajmer, however, the bomb was given to Solanki and Vasani planted it. Patel was also accused of having been involved in the post-Godhra riots in Gujarat, but was acquitted by the court.

NIA has also filed another charge sheet against Swami Aseemanand, whose confession helped the agency open Hyderabad's Mecca Masjid blast and Malegaon 2006 blast cases, along with Sandeep Dangae, Bhawesh Patel, Mehul, Suresh Bhai, Ramchandra Kalsangra, Sunil Joshi and Bharat Bhai. Government investigations concluded that Hindutva outfits, such as Abhinav Bharat, may have actually been behind the blast though no evidence have been found till date.

Taking charge sheet and having done the trail for almost 7 years NIA court had earlier on March 8 convicted three RSS workers e in the case, while acquitting seven others including RSS worker Swami Aseemanand giving them the benefit of doubt. Besides Gupta and Patel, those convicted were Sunil Joshi, who had figured in other cases as well. Joshi died in June 2014.

Gupta and Patel were convicted under various Sections of the Indian Penal Code (IPC) for criminal conspiracy and under Sections of the Explosive Substances Act and Unlawful Activities (Prevention) Act.

Today Special National Investigation Agency (NIA) court announced the quantum of sentence for the two convicts Devendra Gupta and Bhavesh Patel in the 2007 Ajmer dargah blast case. After being held guilty, the court ordered the duo to undergo life imprisonment.