#Throwback to 1977, #IndianOil teamed up with Castrol to drive the indigenous development of #SERVO grades and additives, gaining crucial approvals from original equipment manufacturers. Pioneering #innovation together! Today SERVO has developed into a #superbrand with over 5200 formulations and 1600 grades of lubricants available #ThrowbackThursday #Throwback #IndianOil #SERVO #innovation #superbrand #ThrowbackThursday