As per my knowledge there is no jobs area active at time for Nanotechnology in DRDO. DRDO does not announce any notification for Nanotechnology.

Defence Research & Development Organisation (DRDO) works under Department of Defence Research and Development of Ministry of Defence.

An application fee of Rs. 50/- in the form of IPO/Stamps is charged from applicants for all the post of Group 'C' category except from those who have been exempted for the purpose by Govt. of India.

You can find job in DRDO after following this process:

Visit an official site of DRDO



Go in career section and click on technical staff



Find notification and apply

You can also get job in DRDO in these departments:

Scientists
Technical Staff
Admin & Allied
Students Training / Projects
Research Fellow
Recruitment Rules for Posts in DRDO