Hello sanyogita,
After my right lower lobectomy surgery it was also recommended to me to have 4 rounds of chemo (I was diagnosed as stage 2A). I believe my oncologist said that the chemo would perhaps increase my survivability by 5%…….that may not seem like a lot to some people but at the time I was going to throw everything that I could against that cancer coming back. I was only able to complete 3 of the 4 cycles of cisplatin/permextred due to some kidney toxicity that was caused. I then started my daily treatments on Tagrisso.
Chemo isn’t easy……the immediate effects are manageable but can wear you down…..plus the time involved in getting each treatment cycle. However I understood the thought process involving the chemo and decided it was worth it at the time.
Would I choose that option again???……..I really don’t know but would probably take my oncologist advice. Hope this helps.

@sanyogita15, I'm glad to hear that your NGS testing came back, and that result can now help to guide your care. I'm not an expert or a medical professional. Combining targeted therapies with chemo and/or radiation seems to be more common now, especially for early stage cancers. There is a risk that the targeted therapy won't be a good match for your specific EGFR mutation, in that case you would likely be having chemo. Be sure to get all of your questions answered from the doctors. It's a difficult decision when they are suggesting such different treatment plans.
Also, remember that the prognosis statistics are not your specific story. Many of us are outliving our initial prognosis. I have the ALK mutation (stage 4), and I just celebrated 4 years.