After a row over IndiGo\u2019s revised web-check in policy, India\u2019s largest airline has clarified that passengers can still pre-book free seats during web check-in, subject to availability. IndiGo said in a statement that there has been no change in its web check-in policy, countering its own customer care's claim on Twitter that the policy had been revised from 14 November 2018. "IndiGo confirms that there is no change in the airline's web check-in practice," the company said in a statement.\u00a0\u201cIf the passengers have no particular preference for seats and would not like to pay for advance seat selection, they can . reserve any free seats available at the time of web check-in," the company said. IndiGo added that some free seats may be available at certain time period or on certain aircraft and routes.\u00a0The airline said that if the passengers do not pre-book their seats, they will, of course, be assigned seats at the time of airport check-in. Earlier Sunday, IndiGo customer care had tweeted that now all the seats are chargeable during web check-in, in response to a user query. IndiGo's customer care account @IndiGo6E added in another response on Twitter that the revised seat policy is effective since 14 November 2018. Our revised seat policy is effective since 14th of November, 2018. ~Prabh \u2014 IndiGo (@IndiGo6E) November 25, 2018 IndiGo's statement on Monday, however, sought to clear the air. Customers who wish to opt for "Advance Selection" can get their preferred seat for a fee starting for as low as Rs 100, IndiGo said. However, not all customers need to pay for advance selection, as\u00a0there might be some seats available for free depending on the market conditions, which could be booked at the time of web check-in. "Thus, there are some seats that are available for free at a certain time period before departure (e.g. 1 day before departure) or on certain aircraft type (e.g., ATR operated flights)," said the firm's statement.\u00a0 The "Advance Selection" segmentation is based on customer needs and preferences, and allows\u00a0 passengers to pick seats as per their requirements, IndiGo said.