Yes, via "regulate your scheduling" it can be done to select seat spot together with other service facts. Travellers don't want to fret if they want to update their travel requires. Once you push 1 for PNR enquiry, You will be questioned to supply your 10-digit PNR number. Except for https://irctc-pnr99529.elbloglibre.com/14242479/what-does-indian-railways-pnr-mean