Here are some of his infinite misdeeds :
(a) Taxi, bus and plane fares to-and-from Ahm to Bom were never returned to Jethalal.
(b) He hid in Jethalal's house without his permission.
(c) He took an expensive mobile phone mcherry from Jethalal without paying.
(d) He tore new year party pass in front of Jethalal inside Gada-shop.
(e) He blamed Jethalal for forgetting to take his luggage from the taxi. Luggage was in Ahm and Jethalal was essentially forced to pay the money to get Sundar's luggage.
(f) He forced Jethalal to pay the bills of the hotel where his friends stayed overnight.
(g) He did not book train ticket from Ahm to Bom because of which Jethalal had to pay for expensive taxi from Ahm to Bom.
(h) His friends damaged Jethalal's bedsheets. No money compensation was given.
(i) He ordered Natukaka to buy plane ticket from Bom to Banglore without Jethalal's permission.
(j) He illegally placed Daya's ornaments with Jethalal via baga without informing Jethalal.
(k) Even during breakfast, he finished-up doklas without keeping some for Jethalal.
(l) He blackmailed/threatened Jethalal when Daya had a fever/cough and went to sleep in mid-day.
(m) He sent fire-crackers for Tapu sena but Jethalal had to pay the bill.
(n) Pathang parcel from Ahmedabad and Jethalal had to pay the courier bill.
Please add more to this list...I am 100% sure I would have missed many things...