NSSO is a premier silkworm seed production organization in the country, with a wide network of units spread across nine states in India where mulberry sericulture is practised. Hence it requires meticulous planning, monitoring and evaluation of targets and performance to ensure its effective functioning, since the entire country is totally dependent on NSSO not only for its basic seed requirement, but also for bivoltine hybrid dfls to a large extent, for which it is supported with a wide network of units. This mainly comprises of Basic Seed Farms, Silkworm Seed Production Centres and Cold Storage Plants, which have been established with set objectives. Co-ordination between these units, periodic monitoring by way of review meetings and systematic planning of the activities is highly essential for NSSO to achieve its targets. In the distribution front the major requirement of the country is met by NSSO, which is a testimony to the quality of silkworm seed produced at its production centres.

The main functions of the organization are maintenance, multiplication and supply of basic seed of authorized bivoltine and multivoltine silkworm pure breeds, crop monitoring and procurement of parental seed cocoons, production of bivoltine, multi x bivoltine and multi x multivoltine silkworm hybrid DFLs, preservation of commercial hybrid DFLs for periods ranging from 20 days to 10 months, apart from preserving different breeds of P1 DFLs and  distribution of high quality commercial silkworm seed to the farmers and also providing technical inputs. These activities are planned, monitored, coordinated and evaluated on a regular basis by NSSO headquarters, situated at the Central Silk Board complex in Bangalore.

NSSO Headquarters

 NSSO Headquarters is  involved in the following important works:

  • Preparation of Annual Action Plan and periodical monitoring of its execution at the respective units / centres
  • Monitoring the supply of basic and commercial silkworm seed to different states based on indents
  • Implementation of various components under Central Sector Schemes under Five Year Plans
  • Training of stakeholders, officials and students in various aspects of silkworm rearing and large scale bivoltine loose egg production
  • Implementation of Central Silk Board (Amendment) Act, 2006
  • Uniform Price Administration Committee meetings
  • Planning, coordination and supply of DFLs for Authorization Trials
  • Coordination and supply of P1 DFLs and seed cocoons to Private Registered Seed Producers and also preservation of bivoltine hybrid dfls produced by them
  • Monitoring the adherence to the Quality Management System – ISO 9001:2015 by the Silkworm Seed Production Centres



The units located in this zone are monitored directly by NSSO HQ. Ten Basic Seed Farms situated in the states of Karnataka, Tamil Nadu, Andhra Pradesh and Kerala, eleven Silkworm Seed Production Centres belonging to these four states directly report to NSSO Head Quarters. Thetwo Cold Storage Plants situated at Mysore and Hosur have been merged with their respective SSPCs, i.e., Mysore and Hosur.Apart from this, the P1 Silkworm Seed Production Centre situated at K.R.Nagar in Karnataka, also reports directly to NSSO HQ. NSSO Bengaluru also governs the sole research laboratory attached to it in Silkworm Seed Technology Laboratory, Kodathi.


National Silkworm Seed Organization
Central Silk Board
Ministry of Textiles-Govt. of India
CSB Complex, B.T.M. Layout
Madiwala, Bangalore-560068
Karnataka, India

c1 +91-80-26282699, 26282400, Director: +91-80-26683251
c4 +91-80-26680387
c3 nssoban.csb@nic.in