how much cardio!

Mesomorph:

The mesomorph has all the luck. This is the naturally- muscular person. They are characterized by having broader shoulders and a narrower waist (known as a "V" taper). They gain muscle easily and lose fat easily.

A mesomorphic person training to lose fat can get away with doing only one or two cardio sessions a week while still seeing fairly good results. They will have an easier time holding onto muscle while losing fat, which gives them a calorie-burning advantage (the more muscle you have, the more calories you burn in a day even while doing nothing). Mesomorphs who do more cardio sessions will see greater fat loss results than either of the other two bodytypes - their greater muscle mass helps them burn more calories.

The mesomorph has a relatively easy time gaining muscle. Their bodies seem to naturally want to add muscle and keep it. The mesomorph training for muscle gain should keep doing enough cardio training to maintain cardiovascular capacity (about once or twice a week). They can, however, still get away with doing more without compromising results.

Diet plan for Vegetarians

Diet plan for a vegetarian to build a strong and healthy body would be as follows:
-Eat lots of legumes and pulses.
-Eat soyabean and soya nuts regularly.
-Breakfast should comprise of cereals, muesli, oats, milk, banana and some dates.
-Drink lots of water throughout the day.
-Drink green tea regularly.
-Consume green leafy vegetables.
-Eat lots of fruits and drink fresh fruit juices.
-Consume carrots, lettuce, tomatoes, cucumbers, etc. as part of salad during lunch and dinner.

The above diet plan for a healthy body will help one to work out regularly without feeling tired. 

Early morning: Whey protein shake
Breakfast: oats,breads,milk,legumes 
Snacks: nuts,berries,bananas
Lunch: rice,spinach,beans and other veggies.
Snacks: Whey protein shake, peanuts
Supper: chappatis,green peas,mixed beans,soya
Pre bed: Casein protein shake

The vegetarian diet includes:
1)Cheese it has many varieties like sodium parmesan,whole parmesan,romano,mozarella etc. 
2)Peanuts are the best source of protein among all other dry fruits.
3)Lentils and legumes.
4)Soybean and its product like soy milk.
5)Seeds
6)Fried beans becauses cooking kills its protein.
7)Drink milk regularly.
8)Potatoes,banana and other carbohydrates sources.

Anterior pelvic tilt correction

Lunges put a lot of tension on rectus femoris, which is both a quadriceps muscle and a hip flexor, and will therefore tighten the muscle. But the stretch is in a lunge position, with the back knee relaxed on the floor to take the tension off the rec fem. Hold the stretch for 30sec each side. Do this stretch 3 x daily (breakfast, lunch and dinner) if possible, and at the end of every workout.

You should also stretch your lower back. Anterior tilt is caused by tight lower back pulling the back of the pelvis up, and tight hip flexors pulling the front of the pelvis down. My preferred lower back stretch is sitting down, hugging your knees to your chest, and leaning forward. I find that to feel this stretch, you need to push your torso as far forward as it'll go and make sure that your thighs are always against your torso. Again, 3x daily for 30 seconds and after every workout.

you'll use hip flexors in any cardio workout. So again, I'd make sure you stretch, and focus on using your gluts and hamstrings so that you're activating antagonist muscles.

Speaking of which, once you've done a few weeks of stretching, you should look into some exercises to focus on gluts and hamstrings. Deadlifts are your best friend in this instance, and full range squats are your next-best friend. Contrary to popular belief, lunges are not.