You have not mentioned your BMI and neither your age. So, general recommendations are mentioned below for your consideration that can help you lose weight. But you have to plan your regimen for weight loss - exercise wise and dietwise and take it holistic way:
Yoga is the best approach is to lose weight gradually and for good.
Follow suksham vyayama alongwith with Surya Namaskar for 5 rounds to 12 rounds depending upon your capacity and flexibility.
After suryanamaskar and basic yogasanas - tadasana, katichakrasana, padahastana, ardhachakrasana, bhujangasana, shalabhasana, pawanmuktasana, and halasana - followed by relaxation session, practice Pranayamas - Kapalabhatti, Anuloma-Viloma and Bhastrika
Again practice relaxation session - deep relaxation technique or yoga nidra with positive auto-suggestions - like I am positive, I am slim and healthy to feed into your subsconscious mind.
I hope the above points shall be clue to start yoga session in consultation with doctor and under guidance of qualified yoga expert.