Signalling update hona compulsory hai indian railway aage badh raha hai to sab jagah signal update hona normal baat hai bas sgrl purane system ke bharose nahi chalega isme ye nahi bol sakte ke signalling update karke ecr ne bahut bada kaam karwaya hai aur eg lena hai to bargawan aur singrauli ka lijiye bargawan se kahi jyada load sgrl-cpu ke beech hai lkin uska doubling ka kaam abhi tak shuru kyu nahi hua wahi bargawan se kte ke beech itna speed se kaam ho raha hai aur idle position pe station ko run karne k liye bahut paisa lagta hoga lkin sgrl se jo railway har mahine caroro ki kamai kar raha hai wo, aane wale time me definitely ncl apna production badhayega us hisab se lkin is disha me ecr ne kitna socha hai wo to wahi jane