L1A to H1B for 2019

can some please suggest if i can travel to india meanwhile my L1A to H1B is in progress?? will be coming back to US before oct1st. will there be any issue with COS if travelled to india before my petition is approved??please suggest

If you have applied as Change of Status (COS), then it will be abandoned, if you travel out of the US. Your petition may be approved, but the COS part would be denied and you would need to go for consular processing for working on H1B. You can read general Change of Status (COS ) in US with USCIS - FAQs

Thanks for the info Kumar. Kindly help with below as well!!

if i travel out of US before the status is changed and can i return on my current L1 Visa(though H1B is approved)??

And Can i convert from L1 to H1B when i want to(by consular processing)??

You maybe, that depends on how your H1B was approved…If it does not come with I-94 attached, then it was approved as Consular processing… Yes, you can. Check with your attorney and then only travel.