letter da te pta ne.but there is a procedure to apply. when ever there are posts of teachers to apply, then apply through proper chanel. suppose you are in j.b.t or e.t.t or master,and posts of lecture are advertised in news paper for direct recruitment.Then you can apply.send one application direct to the address given in news paper and one application through your head to deo and then to the address given in news paper.Your head or deo will give you a receipt that your application has been sent.That is a proof,keep it safely. When you are selected, your head will relieve you to join the post and service book will be sent by post to your new head.Then your service will be counted for all purpose. you can get a form to apply ''through proper channel'' from deo office or from book-seller from where you get service book or other school material. Thanks.YOU can call me if you have viber or wattsapp .Give your wattsapp no. Iwill call you back. Thanks.