Airtel — sim of airtel is lost

Address:

Gangtok East sikkim, 737101

I have lost my sim Airtel number [protected]. I lost my phone in train. Plz block my phone number. For further information plz contact [protected]/[protected] I have lost the number when I was traveling in a train to NJP from ghawati. I would like to tell it's was my precious phone. I would be greatful i[censored] block my sim. And help me to take another sim