Indian Railway Catering & Tourism Corporation [IRCTC] — to change mobile number

Respected sir,
Iam pratheesh r nair, using irctc site since many years. I am facing a problem with activating mobile number. Iam in kuwait now, next week coming back to india after completing my four years service here. Since last 8-10 months i tried to activate my kuwait number but not getting otp for verification. No i wants to book some tickets, i didn't even log in my account, and i tried to log in by using otp code but my kuwait otp registration already had been pending so iam not able to. Now i wants to change back to my working indian number. My user name for irctc is maudol
My kuwait number is +[protected]. My working indian number follows, kindly help me to change to [protected]. Kindly do the needful as early as possible. My email id is [protected]@gmail.com