Sabarmati Gas — Over charges than expected minimum bill amount 142-143rs

Address:

D 301 ,akshat heaven ,kudasan

For number [protected]/d 301, akshat heaven, kudasan
For bill generated in 1 st week of april amount charged is 394 rs please share calculation details

Same for bill generated in 1 st week of june amount is 217 ra earlier it was 143 ra for closed home not useing at all

Please share calculation details for this two cycles