Amrit Pakyadas, is a class 'D' scientist attached to the Aeronautical Development Establishment (ADE) branch of DRDO, and the couple lived at the DRDO quarters in Byappanahalli.
His wife Rajani Rajabala, 46, was found in a pool of blood on Monday in their flat.
R Vijayan, 33, who is son of a retired technical staffer in the GTRE wing of DRDO has been nabbed for killing Rajabala.
Police said he first planned the murder. Vijayan revealed that he had many loans to pay for which he used to ask money from Rajabala. On her refusal to give him money several times, he became impatient.
For the last time he went to Rajabala's quarter with a motive to kill her. Viajyan also used to work with an NGO in Bangalore. He told Rajabala to write a suicide note in Tamil as he needed this for his documentary. She did the same but after getting the letter in hand, Vijayan started threatening her for life if she did not give Rs. 10,000.
