Reliance Jio Infocomm (Jio) will raise their tariffs every few months, said brokerage firm, Goldman Sachs (GS). “We expect Jio to raise tariffs every few months, with the next potential increase in January 2018,” analysts of the US based brokerage company added in its report dated October 24. The telco last week raised its tariffs by 15-20% indicating early signs of stability in the telecom sector ravaged by price wars. GS expects Jio to reduce its validity period of the Rs 309 offer from current 49 days to 28 days over the course of CY2018. This move will give incumbents headroom to continue to increase their prices which in turn will impact the overall average revenue per user (ARPU). Its most popular plan of Rs 399 with a three-month validity (84 days) is now available for Rs 459 and subscribers who want to continue with similar rate will have the pack available for a shorter period of 70 days. The telco also changed its data packs on t...