The correct answer is option 2 i.e. 145.

• Samyukta is an 145 vehicles(used) based integrated military action system of electronic intelligence (ELINT), signals intelligence (COMINT) combined with EW (ECM) and electronic support measures (ESM) blocks.
• It is India's largest electronic warfare system.
• It was developed jointly by DRDO, Bharat Electronics Limited, Electronics Corporation of India Limited, and Corps of Signals of Indian Army.
• It has a bandwidth of 1.5MHz–40GHz.
• It can cover an area of 150 km by 70 km.
• It was unveiled in April 2004, and deployed in 2005.
• In 2019, it was used by the Indian Army to jam signals by the Pakistani Army.

Additional Information

• https://www.drdo.gov.in/programme-samyukta#:~:text=It%20is%20a%20complex%20Ground,of%20various%20Communication%20%26%20Radar%20Signals.