Hi shikha 

Their are many online websites are available you go an register your mail ID automatically the job notification will  come to your Email

• https://www.naukri.com/commerce-lecturer-jobs 
• https://www.wisdomjobs.com/commerce-lecturer-jobs-in-coimbatore
• https://www.quikr.com/jobs/lecturer-of-commerce+coimbatore+zwqxj4157493934

these are some of the website where you can find a job all over india