Participants in this group will receive Maitland mobilization techniques applied to the cervical and thoracic spine, combined with Kendall exercises targeting postural correction. Mobilization will be performed by a trained physiotherapist using graded oscillatory techniques. The exercise program will focus on strengthening weak postural muscles and stretching tight musculature associated with upper cross syndrome.

Participants in this group will receive a Kendall exercise program focusing on postural correction. The program includes strengthening of weak muscles and stretching of tight muscles associated with upper cross syndrome.

Group A (Experimental) received Kendall exercises combined with Maitland mobilization, including strengthening of deep cervical flexors, lower trapezius, and serratus anterior, along with stretching of upper trapezius, levator scapulae, and pectoralis major/minor. Maitland mobilization was applied to the cervical and upper thoracic spine using central and unilateral PA oscillations for 50-60 seconds per segment at 2-3 oscillations per second, in addition to warm-up (cervical AROM and shoulder mobility exercises) and cool-down (stretching and diaphragmatic breathing).

Thoracic kyphosis will be measured using a flexicurve ruler. The spinous processes of C7 and T12 will be palpated and marked. The flexicurve ruler will mold along the thoracic curvature between these landmarks, and the curve will be transferred onto paper. . Based on previously published literature, thoracic kyphosis is considered 'normal' between 20 and 40°. Where this exceeds 40°, the curvature is described as hyperkyphosis.

Forward head posture will be assessed by measuring the craniovertebral angle (CVA) using the protractor mobile application. Measuring CVA from a lateral view by drawing a line from the ear tragus to the spinous process of the seventh cervical vertebra and a horizontal reference line through C7. The angle formed between these two lines will represent the craniovertebral angle.A reduced craniovertebral angle indicates increased forward head posture, with values less than 50° commonly used to identify this condition

Rounded shoulder posture was assessed using a vernier caliper. Participants were positioned supine on a firm couch with arms relaxed by their sides. The vertical distance between the posterolateral edge of the acromion process and the couch surface was measured using a vernier caliper. Measurements will be taken bilaterally; an acromion-to-couch distance greater than 2.5cm will be considered indicative of rounded shoulder posture.

The intensity of the pain will be measured with the help of the Visual Analogue Scale (VAS). The VAS is a 10-cm horizontal line with two opposite endpoints marked with the following words: "no pain" at one end and "worst imaginable pain" at the other. The patient will then mark a point on the line that they feel most accurately reflects their current pain. The distance in centimeters or millimeters between the "no pain" point and the patient's mark will be taken as the measure of the patient's pain.