salary issue

Location/place: amritsar

Name of company/service: kochar infotech

Actually i do job in call call centre kochar infoetech amritsar. I’ve completed six month this job then i found the new job better salary so i gave resign for this job n 21 days compleyed of resign bur hr department changed my shift then issue for shift ………then my one month salary not giving so any solution foh cheatef call cntres