Who among the following conceived the Kakori train robbery in 1925?

Ram Prasad Bismil and Ashfaqullah Khan

The correct answer is option 4- Ram Prasad Bismil and Ashfaqullah Khan.

Ram Prasad Bismil and Ashfaqullah Khan were both members of the Hindustan Republican Association (HRA), a revolutionary organization that was founded in 1924. The HRA's goal was to achieve independence for India through armed revolution.

Bismil and Khan conceived the Kakori train robbery in 1925 as a way to fund the HRA's activities. The robbery was carried out on August 9, 1925, when a group of 10 revolutionaries stopped a train carrying government money. The revolutionaries looted the money and escaped, but one passenger was killed in the crossfire.

Bismil and Khan were both arrested and executed for their role in the robbery. However, the robbery was a major turning point in the Indian independence movement. It showed that the British government was vulnerable to attack, and it inspired a new generation of revolutionaries.

The other options are incorrect. Baikuntha Shukla was a member of the HRA, but he was not involved in the planning of the Kakori train robbery. Manmath Nath Gupta and Matangini Hazra were also members of the HRA, but they were not involved in the robbery. Ubaidullah Sindhi was a prominent revolutionary leader, but he was not a member of the HRA.